Wikimania is looking for speakers, workshop/tutorial proposals, and suggestions for discussion panels. If you don't want to speak yourself, but there is someone you would really like to see speak or present at Wikimania, you can suggest this as well. Send abstracts or suggestions to : cfp@wikimedia.org
Please distribute the call for papers widely : http://wikimania.wikimedia.org/wiki/Call_for_papers
On a separate note, SurfWax, a metasearchenging, released a Wikipedia-index tool this week with some cute autocompletion features: http://en.wikinews.org/wiki/Wikiwax_released