This is soooo handy. Stream tunes, make playlists, pretty handy for my 50's-60's lesson plan, and to preview the Yeah Yeah Yeahs Description: Grooveshark is an internationally-availableonline music search engine and music recommendation web software application, allowing users to search for and stream music, for free, that can be played immediately or added to a playlist. Grooveshark streams 50 to 60 million songs per month, to more than 400,000 users. Their audience is growing at a rate of 2 to 3% per day LInk