SkreemR is yet another entrant into the world of playable mp3 search. Just type in a search term and SkreemR will return a set of matching mp3s. Each result contains the filename, description, album, file size, track length, and source. You can play the file directly in the results and rate tracks. There are also links to find lyrics (Lyricwiki), learn more (Wikipedia), purchase album (Amazon), get related videos (YouTube), and located tickets (StubHub). 
While they don’t offer the ability to add songs to a playlist like SeeqPod, you can automatically add songs to share on Facebook by clicking the Facebook icon next to any song. Unlike SeeqPod, you can directly download mp3s.