diff --git a/c3l_membership/forms.py b/c3l_membership/forms.py
--- a/c3l_membership/forms.py
+++ b/c3l_membership/forms.py
@@ -83,13 +83,6 @@ class MembershipForm(Form):
         validators=[Length(max=500)],
     )
 
-    gpg = StringField(
-        "GPG-ID",
-        validators=[Optional(), Length(max=18)],
-    )
-    jabber = StringField("Jabber Handle", validators=[Optional(), Email()])
-    twitter = StringField("Twitter Handle", validators=[Optional()])
-
     terms = BooleanField(
         (
             "By submitting this membership application, you agree to have read and understood "
diff --git a/c3l_membership/templates/index.html b/c3l_membership/templates/index.html
--- a/c3l_membership/templates/index.html
+++ b/c3l_membership/templates/index.html
@@ -138,24 +138,6 @@
             {{ form.country(class="pure-u-1-1") }}
           </div>
         </div>
-        <div class="pure-g">
-          <div class="pure-u-1-1">
-            <b>{{ form.gpg.label }}</b>
-            <b>{{ form.gpg(class="pure-u-1-1") }}</b>
-          </div>
-        </div>
-        <div class="pure-g">
-          <div class="pure-u-1-1">
-            <b>{{ form.jabber.label }}</b>
-            {{ form.jabber(class="pure-u-1-1") }}
-          </div>
-        </div>
-        <div class="pure-g">
-          <div class="pure-u-1-1">
-            <b>{{ form.twitter.label }}</b>
-            {{ form.twitter(class="pure-u-1-1") }}
-          </div>
-        </div>
         <legend></legend>
         <label for="{{ form.minor_member.id }}" class="pure-checkbox">
           {{ form.minor_member }} {{ form.minor_member.label.text|safe}}
diff --git a/c3l_membership/templates/member.html b/c3l_membership/templates/member.html
--- a/c3l_membership/templates/member.html
+++ b/c3l_membership/templates/member.html
@@ -38,12 +38,6 @@
       <dd>{{ "Yes" if form.terms.data else "No" }}</dd>
       <dt>Minor Member:</dt>
       <dd>{{ "Yes" if form.minor_member.data else "No" }}</dd>
-      <dt>GPG-ID:</dt>
-      <dd>{{ form.gpg.data or "<i>Not specified</i>"|safe }}</dd>
-      <dt>Jabber Handle:</dt>
-      <dd>{{ form.jabber.data or "<i>Not specified</i>"|safe }}</dd>
-      <dt>Twitter Handle:</dt>
-      <dd>{{ form.twitter.data or "<i>Not specified</i>"|safe }}</dd>
     </dl>
     <p>Send this document to the Chaos Computer Club Lëtzebuerg!</p>
     {% if form.payment.data == 'wire transfer' %}