Apture

Apture http://www.apture.com

This tool might lead to information overload, but I like it. It allows you, with the addition of the apture script to your blog ( can't get it to work yet in wikispaces, alas) , to add a pop up window on a bit of linked text to enrich your posting.

Here for example I write about my visit to Hoover Dam. I was so amazed at the engineering feat and the changes this dam brought in its wake. I also love to visit sites constructed during the WPA era. You almost always see such interesting art associated with these sites, and the Hoover Dam, with its concrete bas relief and the metal angels.