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 			(University of Leipzig, Germany)</p>
 
 			<h3>11:00 - 12:30 Session 5</h3>
-			<p><b>Impulse Talks</b></p><p class="green"><a href="heloise-cfp.html">The call for impulse talk contributions is still open!</a></p>
+			<p><b><u>Natanael Arndt</u></b> Semantic Web–Collaboration and Tools
+			(Institut für Angewandte Informatik e.V., Germany)  <a class="more_abstract" onclick="show_abstract(this)">show abstract</a></p>
+			<div class="show_abstract"><p>Collaboration and exchange is a key factor for the success of the Web. Currently the Web is evolving to a Web of Linked Data, which comes with a necessity and trend for re-decentralization. In this talk I will give a short introduction to the vision of the Semantic Web and will present some tools to support collaboration and exchange of information.</p>
+			</div> <!-- show_abstract -->
 			<p><b><u>Stefania Zucchini</u></b> Research and data sharing's strategies in the Onomasticon Database
 			(Università degli Studi di Perugia, Italy) <a class="more_abstract" onclick="show_abstract(this)">show abstract</a></p>
 			<div class="show_abstract">