Employees can join or create their own private collaboration networks by using their work email address at Socialtext.com. In addition to the new free offering, the company announced the immediate availability of SocialCalc, the first social spreadsheet program that simplifies version control, reduces errors and increases productivity for distributed teams.
Check out Dan Bricklin's five minute screencast demo of SocialCalc: Forme, this is really a major moment. I finally can do the demo I've been wanting to do for years: A complete budget example with a rollup of 50 states into a country total, with each of the 50 states' pages dependent upon other pages with country-wide values (such as price lists and model factors), and each with a link to a wiki discussion page. You can change a master model factor (such as default growth or default product mix) or a particular state's values (such as sales growth override value) and then load the USA or regional page and see them all recalculated to provide the latest totals. Here's some coverage: TechCrunch: Socialtext Goes Freemium With Socialtext Free 50 ReadWriteWeb: 30 Years After VisiCalc, Socialtext Unveils SocialCalc & Freemium PricingVentureBeat: Collaboration software Socialtext goes free for up to 50 users Dan Bricklin: New SocialCalc release for the OLPC