We would like to announce two new papers using Wikipedia. We hope that the results will be of use for the Wikipedia research community. (1) Torsten Zesch, Iryna Gurevych (2007) ''Analysis of the Wikipedia Category Graph for NLP Applications.'' Proceedings of the TextGraphs-2 Workshop (NAACL-HLT) http://elara.tk.informatik.tu-darmstadt.de/publications/2007/hlt-textgraphs… In this paper, we discuss the Wikipedia category graph. We perform a graphtheoretic analysis and show that it is a scale-free, small world graph like other well-known lexical semantic networks. (2) In this paper, we show how Wikipedia can be used for computing semantic relatedness between terms. Wikipedia outperforms classical semantic wordnets on the task of estimating non-classical semantic relations. Torsten Zesch, Iryna Gurevych, Max Mühlhäuser (2007) ''Comparing Wikipedia and German Wordnet by Evaluating Semantic Relatedness on Multiple Datasets.'' Proceedings of NAACL-HLT http://elara.tk.informatik.tu-darmstadt.de/publications/2007/hlt-short.pdf Best regards, Torsten -- Dipl.-Inf. Torsten Zesch Doctoral Researcher Ubiquitous Knowledge Processing Group Darmstadt University of Technology WWW: http://www.ukp.tu-darmstadt.de