Mixx

For general discussion of Mixx

StumbleUpon

StumbleUpon is one of the most innovative social sites on the Internet. Members "stumble upon" stories that match their interests and have the option of giving it a thumbs up or down, reviewing the page, and sending it to friends.

Metafilter

As a completely different type of social media site, MeFi often takes new visitors who are experienced in social media by surprise. Because of strict rules, the overall quality of the content here is excellent.

MySpace

friendfeed

A place where you can see exactly what your friends are doing.

Digg

Some love it, some hate it. Here's where you can talk about it.

Fed Up With Digg

Tired of the abuse at Digg? Me too.

Propeller

Formerly Netscape, Propeller enjoys a strong hold on a segment of social media with innovative moderation techniques and a wide variety of topics served.

Diggaholics Anonymous

Well, not really anonymous. Join only when you're ready to move on to another site. Discuss the future possibilities with fellow users here.

NewsTrust

For general discussion of NewTrust

Sphinn

The Digg of the search and social media world. Stories get voted to the top by its constituent members.

Twitter

What's going on with and around us, live, in 140 characters or less.

Facebook

Shoutwire

Technorati

The Drill Down podcast

A group for fans of The Drill Down podcast, the tech podcast hosted by Social Bookmarkers Andrew "MrBabyMan' Sorcini, Muhammad 'msaleem' Saleem, and Reg 'zaibatsu' Saddler

Social Blend Podcast

Social Blend is a podcast that covers top Social News stories, Mixx.com and Social Media users.

LinkedIn

SUBBITT

A social media/news site built by users FOR users.

Ning Developers

niche network developers