I love reading wikis and blogs and my husband uses wikis in his college classroom. That is why our one border collie is named Wiki. I have been researching and I have been seeing some interesting wikis while researching this year here are a few places I have found.
Best Educational Wikis of 2010 if you want to browse them.
Wikispaces hosts webinars off and on for a variety of topics check out the site periodically and see if any interest you. The have a variety some on educational wikis. They have a new one each month around the 15th. The one last month demonstrated how professional development wikis can get important information and tools to educators across multiple rural districts in Texas. Some ideas expressed would be great for our diocese since our schools are very spread out.
Not art related but a really cool thing
Art site has some great things I have found that can be geared for younger than high school grades.
New teacher wiki chat