NBC Inc has expanded its stake in web community Xoom.com Inc, which could lead to it taking a majority stake in the NBCi venture that will combine NBC’s internet assets with those of Xoom.com and the Snap.com joint venture that NBC has with CNet Inc. The combined company will retain the snap.com web identity, but will be led by Xoom.com’s current chairman, Chris Kitze. NBC will invest an additional $25m stake in Xoom.com and accelerate a $30m cash investment. Upon conversion of a debt instrument, NBC will now own 54% of the shares in NBCi, as the venture will be known, which is 1% more than previously. However, in the near term, it will still only control 49.9% of NBCi.