PUBLIC MARKS with tags social & software

Digg for blogs using categories

Add files, pictures, rich-format comments, and hyperlinks, See calendar and map views, Copy and paste from Excel, Share it securely on the web

mabber makes Instant Messaging even more simple and more useful. mabber integrates ICQ, MSN, AIM, Yahoo and Jabber in one web browser-based instant messager

We're busy working on a new system for communicating on the internet -- something we like to call "instant grouping." We know that's not a lot to go on, but if you're intrigued please enter your email below and we'll keep you posted.

co.mments helps you stay on top of the conversation by keeping you updated of new comments. Just bookmark, track and follow.

Outfoxed uses your network of trusted friends and experts to help you find the good stuff and avoid the bad.

The Web 2.0 Workgroup is a network of premium weblogs that write content about the new generation of the Web.

Social bookmarking videos with a bookmarklet

Frappr is an online tool that lets you map out a city. You can also share photos, private message them, or leave comments on their MyFrappr homepage. My city is invalid! What gives? Make sure you use the autocomplete popup box that shows up after you type a few letters. Then try alternate spellings (eg. St. vs Saint). If your city is small (pop. under 500) or new, it probably isn't in our database. We're also getting a lot of reports of missing Canadian, Australian, and Middle Eastern cities. Add to the City Request list.

Your own audio broadcast, where you can easily record voice messages, mix in your favorite music, and share it all for the world to hear.

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.

For the first time ever, consumers can add live videoconferencing to their Web sites, blogs and vlogs (video blogs) without having to download or install any software on their computer.

The poll box is 100% HTML/DHTML. No Flash!

Collaborative people search with bookmarking and tagging

1-Encourage Social Contributions With Individual Benefit. 2-Make Content Editable Whenever Possible. 3-Encourage Unintended Uses. 4-Provide Continuous, Interactive User Experiences 5- Make Your Sure Your Site Offers Its Content as Feeds and/or Web services....

An evergrowing resource of Web 2.0 applications. The ultimate guide to everything Web 2.0.

Askeet is a community based Q&A repository. Anyone can post a question about any subject, or answer an existing question. Registration and use are completely free. If you need an answer, ask your question, register to its RSS feed of answers, and just wait until your news aggregator pops out with an answer. Questions and answers can be rated, so that the most interesting questions and the most useful answers come first. If you have knowledge to share, pay askeet a visit from time to time, you might even earn some money.