PUBLIC MARKS with tags tags & social

tagbert is a tag service aggregator - type in a keyword, and you will find photos, products, links, goals, and more

Music community with tags and mobile support

Listal is a social website where you can list all the movies, books, music and games you own and want!

social buzz with hierachical categories

Tagged is a new interactive social experience for teens like you. It's a place for you to come every day to check out your friends, build your team, and show off what you're all about! Once you've been Tagged by someone you know, you can come to Tagged.co

Loomia is a search engine which utilized users collective intelligence by providing discovery services. Loomia crawls all the blogs for audio and video files and letting users to tag the content they like.

Social Bookmarking for Lawyers

digg but nicer: interface looks better and page loads are faster

* Socialogue is a tool to allow people to socially catalogue personal libraries. In terms of functionality, it is similar to sites like del.icio.us and Flickr, but for books, music, and videos. * Our service is entirely free. We don't charge to keep track of your library. We just ask that you purchase a book, some music, or a video through our site (coming soon) occasionally to help support the cost of maintaining the site and developing new features.

Chinese social network service with tagging

1. Introduction A folksonomy is a type of distributed classification system. It is usually created by a group of individuals, typically the resource users. Users add tags to online items, such as images, videos, bookmarks and text. These tags are then shared and sometimes refined. A general review of social bookmarking tools, one popular use area of folksonomies, was given in the April edition of D-Lib [1]. In the article the authors elaborate on the approach taken by social classification systems and the motivators behind tagging. They write, "...tags are just one kind of metadata and are not a replacement for formal classification systems such as Dublin Core, MODS, etc.... Rather, they are a supplemental means to organise information and order search results."

a free online reference management service for researchers and clinicians

Dinnerbuzz is a social guide to restaurants, bars, and coffee shops. It's designed to make it easier for you to find a place for dinner or drinks anywhere in the world.

jamendo is a new model for artists to promote, publish, and be paid for their music. user-rating, tagging, tag-clouds, RSS feeds, forums and every Web 2.0 feature and lot of languages.

Collaborative people search with bookmarking and tagging

Tag and rate web sites. People powered search that last 30days

Google start page featuring a tag cloud consisting of recent/popular Google searches.

Jookster is a powerful search engine that ranks results based on sites you and your network finds of value. With Jookster, you are able to search the web and find relevant results based on jooked sites by you and your network of friends. In return when you see a great site, you can jook and instantly share it with your network.