We haven’t finished our review of Yammer, a lifestreaming service for companies, limited to employees with valid email addresses owned by a company who can share activity within that company, but don’t wait to add your review! Publish it right now in Comments.

BrightKite delivers placestreams and friend alerts

BrightKite takes the idea of recording all sorts of activity, from text notes to pictures of events and people, and applies it to places. The result is called “placestreaming,” though BrightKite keeps the orientation on people rather than places: what you are doing, what’s going on around you, and what [...]

 
In the socially connected world, there is a new challenge in finding professional help: How do you check what people have said about their work in the past and find out how many people follow them on various social networks, which may be an indication of their competence? Twellow, a directory of “people who matter,” is [...]

Jaiku was an experimental invitation-only micro-blogging site that was acquired by Google and operated until January 2009, when it was discontinued as part of cost-cutting efforts at the company. Google has said it will give the underlying code to anyone who would like to use it, but no longer supports posting to the site. 
If you were [...]

 
Perhaps the hottest of the hot amongst social networks right now, Twitter is gaining members all over the globe. It is the simplest thing: You can type up to 140 text characters and, with a click of a button, publish that micro-posting to the world. Twitter allows friends to follow one another, so your own [...]

A Friendfeed collects Twitter, Google Reader and other activities into a lifestream

Friendfeed is a relatively new service that combines activity feeds from many different sites to create a lifestream that you can share with friends or the world. A lifestream collects short messages sent via Twitter, GoogleReader (an RSS news reader), Amazon, photo-sharing sites [...]