diff --git a/README.rst b/README.rst
index e70a3ae..bc51dff 100644
--- a/README.rst
+++ b/README.rst
@@ -22,7 +22,8 @@ Contacts
 Development environment
 =======================
 
-You need to create database manually::
+Execute these commands in Ubuntu 14.04 or greater to prepare your environment
+for development::
 
   $ createdb pylab
   $ make
@@ -119,12 +120,12 @@ you have to be careful with.
 To avoid refactoring issues, we keep all project data access logic in single
 Django app called ``core``. Also this helps us to better manage dependencies
 between apps. Since ``core`` contains data access logic which is lowest layer
-according to *multilayered architecture*, this means, that is is very likely,
+according to *multilayered architecture*, this means, that it is very likely,
 that most of the code will depend on this app. So since ``core`` tend to be
 referenced by many other modules and apps, we keep ``core`` lean.
 
 ``website`` app is another special case and it belongs to *application* and
-*presentation* layers. This means that no other apps can ``website`` depend on
+*presentation* layers. This means that no other apps can depend on
 ``website``, but ``website`` should depend on all other apps. In other words,
 ``website`` works like top level app with purpose to connect all components in
 order to assemble whole project.
diff --git a/pylab/accounts/forms.py b/pylab/accounts/forms.py
index 9c7a71c..f61e25d 100644
--- a/pylab/accounts/forms.py
+++ b/pylab/accounts/forms.py
@@ -13,11 +13,15 @@ class UserProfileForm(forms.ModelForm):
 
     class Meta:
         model = accounts_models.UserProfile
-        fields = ('first_name', 'last_name', 'email', 'language')
+        fields = ('first_name', 'last_name', 'email', 'language', 'accepted_terms')
         help_texts = {
             'email': _(
                 "Will be used for communication. If you want not to get any emails, leave this field empty."
             ),
+            'accepted_terms': _(
+                "[Terms of serivce](http://pylab.lt/terms/). Basically, you accept that all your "
+                "creation and work done for Python workshops will belong to Python workshops."
+            ),
         }
 
     def __init__(self, *args, **kwargs):
@@ -26,6 +30,9 @@ def __init__(self, *args, **kwargs):
         self.fields['email'].initial = self.instance.user.email
         self.fields['first_name'].initial = self.instance.user.first_name
         self.fields['last_name'].initial = self.instance.user.last_name
+        self.fields['accepted_terms'].required = True
+        if self.instance.accepted_terms:
+            self.fields.pop('accepted_terms')
 
     def save(self, *args, **kwargs):
         super(UserProfileForm, self).save(*args, **kwargs)
@@ -41,6 +48,10 @@ class SignupForm(forms.ModelForm):
     ) + tuple(settings.LANGUAGES)
 
     language = forms.ChoiceField(label=_('Language'), required=False, choices=LANGUAGE_CHOICES)
+    accepted_terms = forms.BooleanField(label=_('Accept terms of service'), required=True, help_text=_(
+        "[Terms of serivce](http://pylab.lt/terms/). Basically, you accept that all your "
+        "creation and work done for Python workshops will belong to Python workshops."
+    ))
 
     class Meta:
         model = auth_models.User
@@ -58,4 +69,5 @@ def signup(self, request, user):  # pylint: disable=unused-argument
         user.email = self.cleaned_data['email']
         user.save()
         user.profile.language = self.cleaned_data['language']
+        user.profile.accepted_terms = self.cleaned_data['accepted_terms']
         user.profile.save()
diff --git a/pylab/accounts/migrations/0002_auto_20150730_1059.py b/pylab/accounts/migrations/0002_auto_20150730_1059.py
new file mode 100644
index 0000000..b500c31
--- /dev/null
+++ b/pylab/accounts/migrations/0002_auto_20150730_1059.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+from django.conf import settings
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounts', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='userprofile',
+            name='accepted_terms',
+            field=models.BooleanField(default=False, verbose_name='Accept terms of service'),
+        ),
+        migrations.AlterField(
+            model_name='userprofile',
+            name='language',
+            field=models.CharField(choices=[('lt', 'Lithuanian'), ('en', 'English')], default='', max_length=7, blank=True, verbose_name='Language'),
+        ),
+        migrations.AlterField(
+            model_name='userprofile',
+            name='user',
+            field=models.OneToOneField(related_name='profile', to=settings.AUTH_USER_MODEL),
+        ),
+    ]
diff --git a/pylab/accounts/models.py b/pylab/accounts/models.py
index 0e0ebc4..a210f67 100644
--- a/pylab/accounts/models.py
+++ b/pylab/accounts/models.py
@@ -9,6 +9,7 @@
 class UserProfile(models.Model):
     user = models.OneToOneField(auth_models.User, related_name='profile')
     language = models.CharField(_('Language'), max_length=7, choices=settings.LANGUAGES, default='', blank=True)
+    accepted_terms = models.BooleanField(_('Accept terms of service'), default=False)
 
 
 @receiver(post_save, sender=auth_models.User)
diff --git a/pylab/accounts/static/css/accounts.scss b/pylab/accounts/static/css/accounts.scss
index 9ec1c67..942b8e6 100644
--- a/pylab/accounts/static/css/accounts.scss
+++ b/pylab/accounts/static/css/accounts.scss
@@ -27,4 +27,6 @@
     }
 }
 
-
+#id_accepted_terms {
+    width: 10%;
+}
diff --git a/pylab/accounts/tests/test_settings.py b/pylab/accounts/tests/test_settings.py
index 0ffd86e..21c9dc4 100644
--- a/pylab/accounts/tests/test_settings.py
+++ b/pylab/accounts/tests/test_settings.py
@@ -8,7 +8,9 @@
 class SettingsTests(django_webtest.WebTest):
     def setUp(self):
         super().setUp()
-        auth_models.User.objects.create_user('u1')
+        u1 = auth_models.User.objects.create_user('u1')
+        u1.profile.accepted_terms = True
+        u1.profile.save()
 
     def test_user_settings(self):
         resp = self.app.get('/accounts/settings/', user='u1')
@@ -47,3 +49,17 @@ def test_user_profile_locale_middleware(self):
         resp = self.app.get('/accounts/settings/', user='u1')
         # Website interface is displayed in lithuanian
         self.assertTrue(b'Saugoti' in resp.content)
+
+    def test_requirement_to_accept_terms_of_service(self):
+        auth_models.User.objects.create_user('u2_not_accepted_terms_yet')
+        resp = self.app.get('/accounts/settings/', user='u2_not_accepted_terms_yet')
+        resp.form['language'] = 'en'
+        resp = resp.form.submit()
+        # Don't allow to save unless user accepts terms of service
+        self.assertEqual(resp.status_int, 200)
+        self.assertTrue(b'has-error' in resp.content)
+        resp.form['language'] = 'en'
+        resp.form['accepted_terms'].checked = True
+        resp = resp.form.submit()
+        # Allow to save settings changes because user accepted terms of service
+        self.assertEqual(resp.status_int, 302)
diff --git a/pylab/locale/lt/LC_MESSAGES/django.po b/pylab/locale/lt/LC_MESSAGES/django.po
index 2014e76..43e3610 100644
--- a/pylab/locale/lt/LC_MESSAGES/django.po
+++ b/pylab/locale/lt/LC_MESSAGES/django.po
@@ -4,7 +4,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: 1.0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2015-07-27 06:02-0500\n"
+"POT-Creation-Date: 2015-07-30 14:09-0500\n"
 "PO-Revision-Date: \n"
 "Last-Translator: \n"
 "Language-Team: \n"
@@ -27,7 +27,7 @@ msgstr "Pavardė"
 msgid "Email address"
 msgstr "El. pašto adresas"
 
-#: accounts/forms.py:19 accounts/forms.py:47
+#: accounts/forms.py:19 accounts/forms.py:61
 msgid ""
 "Will be used for communication. If you want not to get any emails, leave "
 "this field empty."
@@ -35,14 +35,28 @@ msgstr ""
 "Bus naudojamas komunikacijai. Jei pageidaujate negauti jokių laiškų, "
 "palikite šį lauką tuščią."
 
-#: accounts/forms.py:25 accounts/forms.py:40
+#: accounts/forms.py:22 accounts/forms.py:52
+msgid ""
+"[Terms of serivce](http://pylab.lt/terms/). Basically, you accept that all "
+"your creation and work done for Python workshops will belong to Python "
+"workshops."
+msgstr ""
+"[Paslaugų teikimo sąlygas](http://pylab.lt/terms/). Iš esmės, Jūs sutinkate, "
+"kad visa Jūsų kūryba ir atliktas darbas Python dirbtuvėms priklausys Python "
+"dirbtuvėms."
+
+#: accounts/forms.py:29 accounts/forms.py:47
 msgid "Default"
 msgstr "Numatytoji"
 
-#: accounts/forms.py:39 accounts/models.py:11
+#: accounts/forms.py:50 accounts/models.py:11
 msgid "Language"
 msgstr "Kalba"
 
+#: accounts/forms.py:51 accounts/models.py:12
+msgid "Accept terms of service"
+msgstr "Sutikti su paslaugų teikimo sąlygomis"
+
 #: accounts/templates/accounts/login.html:9
 #: accounts/templates/accounts/login.html:24 website/templates/base.html:36
 msgid "Login"
@@ -97,6 +111,34 @@ msgstr "Profilio nustatymai"
 msgid "Save"
 msgstr "Saugoti"
 
+#: core/models.py:15 core/models.py:43
+msgid "Title"
+msgstr "Pavadinimas"
+
+#: core/models.py:16 core/models.py:47
+msgid "Description"
+msgstr "Aprašymas"
+
+#: core/models.py:31
+msgid "Other event"
+msgstr "Kitas renginys"
+
+#: core/models.py:32
+msgid "Project development"
+msgstr "Projekto vystymas"
+
+#: core/models.py:33
+msgid "Initial meeting"
+msgstr "Pradinis susitikimas"
+
+#: core/models.py:34
+msgid "Weekly meeting"
+msgstr "Savaitinis susitikimas"
+
+#: core/models.py:49
+msgid "OpenStreetMap iframe src link."
+msgstr "OpenStreetMap iframe src nuoroda."
+
 #: settings/base.py:23
 msgid "Lithuanian"
 msgstr "Lietuvių"
@@ -105,7 +147,7 @@ msgstr "Lietuvių"
 msgid "English"
 msgstr "Anglų"
 
-#: website/forms.py:16
+#: website/forms.py:17
 msgid ""
 "Describe your project idea. You can use [Markdown](http://daringfireball.net/"
 "projects/markdown/syntax){:target=_blank} markup."
@@ -113,57 +155,18 @@ msgstr ""
 "Apibūdinkite savo projekto idėją. Galite naudoti [Žymėjimų kalbą](http://"
 "daringfireball.net/projects/markdown/syntax){:target=_blank}."
 
-
 #: website/menus.py:18 website/templates/base.html:14
 msgid "Summer Python Workshop"
 msgstr "Vasaros Python dirbtuvės"
 
-#: website/models.py:15
-msgid "Title"
-msgstr "Pavadinimas"
-
-#: website/models.py:16
-msgid "Description"
-msgstr "Aprašymas"
+#: website/menus.py:19
+msgid "About"
+msgstr "Apie"
 
 #: website/templates/base.html:34
 msgid "Logout"
 msgstr "Atsijungti"
 
-#: website/templates/website/project_details.html:11
-msgid "Change"
-msgstr "Redaguoti"
-
-#: website/templates/website/project_list.html:8
-msgid "Suggest new project idea"
-msgstr "Pasiūlyti naują projekto idėją"
-
-#: website/templates/website/project_list.html:15
-msgid "Project idea"
-msgstr "Projekto idėja"
-
-#: website/templates/website/project_list.html:27
-msgid "No suggested projects yet."
-msgstr "Kol kas nėra pasiūlytų projektų."
-
-#: website/views.py:35
-#, python-format
-msgid "Project „%s“ created."
-msgstr "Projektas „%s“ sukurtas."
-
-#: website/views.py:41
-msgid "Suggest new project"
-msgstr "Pasiūlyti naują projektą"
-
-#: website/views.py:56
-#, python-format
-msgid "Project „%s“ updated."
-msgstr "Projektas „%s“ atnaujintas."
-
-#: website/menus.py:19
-msgid "About"
-msgstr "Apie"
-
 #: website/templates/website/about.html:7
 msgid "About Summer Python Workshop"
 msgstr "Apie Vasaros Python dirbtuves"
@@ -218,6 +221,12 @@ msgid ""
 "devoted\n"
 "    to clarify aims and user stories for the chosen project."
 msgstr ""
+"Kiekvienos Python dirbtuvės prasideda pradiniu susitikimu, per kurį\n"
+"    dalyviai balsuoja, kurį projektą jie norėtų įgyvendinti šių dirbtuvių "
+"metu.\n"
+"    Pradinis susitikimas yra truputį ilgesnis, nei įprasti savaitiniai "
+"susitikimai ir pagrinde skirti pasirinkto projekto tikslų bei panaudos "
+"scenarijų išgryninimui."
 
 #: website/templates/website/about.html:34
 msgid ""
@@ -285,3 +294,33 @@ msgstr ""
 "serverių, patalpų nuomos, komunalinių mokesčių, hakatonų organizavimo "
 "sąnaudos, taip pat gali būti samdomi etatiniai Python dirbtuvių "
 "programuotojai."
+
+#: website/templates/website/project_details.html:11
+msgid "Change"
+msgstr "Redaguoti"
+
+#: website/templates/website/project_list.html:8
+msgid "Suggest new project idea"
+msgstr "Pasiūlyti naują projekto idėją"
+
+#: website/templates/website/project_list.html:15
+msgid "Project idea"
+msgstr "Projekto idėja"
+
+#: website/templates/website/project_list.html:27
+msgid "No suggested projects yet."
+msgstr "Kol kas nėra pasiūlytų projektų."
+
+#: website/views.py:35
+#, python-format
+msgid "Project „%s“ created."
+msgstr "Projektas „%s“ sukurtas."
+
+#: website/views.py:41
+msgid "Suggest new project"
+msgstr "Pasiūlyti naują projektą"
+
+#: website/views.py:56
+#, python-format
+msgid "Project „%s“ updated."
+msgstr "Projektas „%s“ atnaujintas."