Of course, you can add a social layer to Google Apps, a competitor of sorts to Zoho, with Socialwok. But the plus of using Zoho's applications is that suite ties into its other productivity applications seamlessly. And Zoho is affordable, with a free version of the suite. Last year, we wrote that Zoho has continued to implement an intelligent strategy to launch new products and add-ons to its existing offerings, partly to keep users from flocking to Google Apps and Microsoft's Web-based version of Microsoft 2010. It looks like Zoho is continuing this strategy in 2010.

The adoption of Facebook Connect makes sense for a number of reasons. First, productivity apps in the enterprise are naturally becoming more social. Second, Facebook, with 400 million users, could bring more traffic to Zoho. Last year, startup unveiled a new version of Zoho Reports; launched a deeper integration with Google Docs; rolled out Zoho Discussions, a online forum tool for businesses; and debuted Zoho Recruit.

And over the past two years, Zoho has added support for Sharepoint, mobile, Google and Yahoo IDs and group sharing. According to out latest states, Zoho has definitely reached over 2 million users is even catching the attention of its competition.