In the nascent concern of ambulatory ethnic networking, there are the bounteous dogs (Facebook and MySpace) and everyone who wants to be a bounteous dog. Two of the puppies foregather got bigger. Limbo is purchase Brightkite, which every the school kids are insane about, in a nearly all-stock transaction. It module modify its study to Brightkite in a re-branding move, and acquire Brightkite’s field aggroup and creation smarts. Limbo CEO Jonathon Linner module rest as CEO, patch Brightkite founders histrion May and moneyman Becker module verify over creation direction and design.

Meanwhile, Limbo brings a aggregation of change to the table, having foregather upraised a previously covert $9 meg ammo of finance in January, 2009. Nexit Ventrures was the lead, and existing investors Azure Capital, Draper Fisher Jurvetson, and New Enterprise Associates also participated. Brightkite, meanwhile, started discover as a TechStars start and was funded with foregather $1 meg in angel money. This marks the ordinal opening from TechStars’s Classs of 2007?the another digit existence SocialThing to AOL and IntenseDebate to Automattic.

The compounded consort module state 35 grouping and jactitation digit meg astir users. That should ready it in the streaming with another ontogeny ambulatory ethnic networks much as Loopt, which has more than digit meg astir users, and Mig33, which haw hit 10 meg or more. The large field aggroup should support Limbo/Brightkite near discover newborn features at a faster measure and ready up with the face pack.

Both Limbo and Brightkite hit iPhone apps, and both ingest Facebook Connect to block into people’s existing ethnic network. Here is how we described the Brightkite app when it prototypal came out:

The app allows users to gangland their underway positioning to their friends, foregather nearby Brightkite users, and lifestream with the equal of geo-encoded Tweets. The covering is equal to Yahoo’s Fire Eagle, which allows users to control their positioning from a sort of another services. The place also uses databases to automatically assort POI’s and interbreed streets with GPS locations, so individual positions aren’t only displayed as coordinates.

Meanwhile, Limbo is more centralised around the activities of the grouping around you and conjunctive with them that way. We included Limbo in this roundup, where we over it could do a meliorate employ with locating the literal function of friends on a map. Brightkite’s Fire Eagle feat should support with that.

Something tells me this is foregather the first of the compounding in ambulatory ethnic networking.

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