Best of the Web - What's New 4/18/2011

Topsy - Discover the most influential conversations, most discussed topics, and the most relevant content based on unique algorithms, and all of it in real time.
( Top > Computers > Internet > Searching the Internet > Search Engines > Specialized )
Sophia - Free social teaching and learning platform offers video tutorials with lessons for arts, business, math, science, English, and learning strategies, to be used by students, parents, and teachers.
( Top > Reference > Education > Educators > K through 12 )
6EMEIA - Street art also known as urban intervention art that has been created on walls, traffic signs, ads, and trees across a very modern cityscape, with clever use of existing landmarks and items.
( Top > Society > Subcultures > Hip-Hop > Graffiti )

Best of the Web Directory