When Carbonite (NASDAQ:CARB) announced Q1 financial results today, CEO David Friend credited growing small business cloud backup momentum. Moreover, channel partners -- from small resellers to cable companies and big cloud services providers (CSPs) -- are driving more and more of Carbonite's cloud momentum.

Carbonite's Q1 2013 revenue was $24.5 million, up 32 percent from Q1 2012. Net loss for Q1 2013 was ($7.4) million, compared to ($9.1) million in Q1 2012. The results met Wall Street's expectations.

During an earnings call, Friend said Carbonite's cloud-based backup service now has 3,400 active resellers. Sure, many of those resellers are small VARs. But big CSPs are also backing the company.

A prime example: Comcast Upware -- an online marketplace for small businesses -- now offers Carbonite. And at least two big IT distributors are evaluating whether to offer Carbonite via their cloud services brokerage platforms, Talkin' Cloud has learned.

In addition to serving 3,400 resellers today, Carbonite has "seen increasing interest from large strategic partners such as big box retailers, cable companies and independent Internet service providers who are trying to push further into cloud services," Friend said during the earnings call.

Still, the cloud-based backup market is incredibly competitive. A growing number of companies now offer cloud backup services through VARs and managed services providers. Carbonite is growing and so are rivals. So what's the next move? The safe bet: A sharper Carbonite focus on database backup to the cloud.