app/views/shared/_challenge_credits.erb
<h5>Created by: <%= profile_link(show_challenge.user) %>
<span style="float:right">
<%= tweet_button({
:via => "",
:url => current_url,
:text => "awesome VimGolf challenge: #{show_challenge.title} @",
:related => ["vim", "learnvim"],
:count => "horizontal"
}) %>
</span>
</h5>
<h2 style="padding-bottom:1em; border-bottom: 1px dotted;">
<b class="stat"><%= show_challenge.count_uniq_users %></b> active golfers, <b class="stat"><%= show_challenge.count_entries %></b> entries
</h2>