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RadiusIM, a tool that combines web-based IM with Google Maps, has passed 100,000 registered users. According to the company, more than 40,000 of these users have signed up in the last month, thanks in part to the Facebook application the company recently launched. RadiusIM also says that new email invite features they have added to the site are contributing heavily to the growth.
We first covered RadiusIM last August. The company competes with the likes of Meebo and Meetro.