PUBLIC MARKS with tags "music sharing" & "music search engines"

Similar to Seeqpod, Mixtape.me "grabs music from around the web, notably from Seeqpod, and does a great job of letting you make and browse playlists in an environment reminiscent of desktop music players. You don't need an account to create a Quick Playlist on mixtape.me. You can just start adding tracks from searches and other people's playlists. Registering an account lets you add (but not upload) mp3s and save your playlists. There are also a lot of extra touches, like grabbing song info, lyrics and album artwork automatically. You can also share your playlists easily, even with friends who aren't signed up with Mixtape.me." [downloadsquad]

"Similiar to Seeqpod and Songza, Just Hear It offers registered and unregistered users alike a seamless interface for song search and playlist creation, all from within the browser. Just Hear It claims to be completely legal, following DMCA guidelines, and paying royalties to all of the major performing-rights organizations, like ASCAP, BMI, and SESAC. In the future, Just Hear It aims to negotiate licenses to share revenue with labels. Currently, much of the music actually seems to come from YouTubeYouTube reviewsYouTube reviews - much like another site we recently reviewed, StreamDrag." - Mashable

Add your music to listen from anywhere. Save playlists.

Jogli is a music search engine claiming a catalog of 12+ million albums and 500+ million songs. It's an amazing service, built primarly on top of YouTube content. Search for a band and they'll show you a link for that band's details as well as albums, video clips, and user-created playlists. Jogli recreates albums from YouTube clips and other free services. If you don't like the version of the song they've selected, click the “Get alternatives for this song” link to see what else they have. [jamtopia] With the Jogli Widget, now you can embed albums and playlists in your web pages.

TinySong gives you a short links to songs that you find that make it easy to share songs. Powered by Grooveshark.

Seeqpod offers a fast way too search for mp3's, and videos for any artist. Add what you like from the results to a playlist that you play, save and share.