Ask HN: Online Biz Collaboration Software Too Crowded?

Hey,

Been looking at developing a commercial business-focused web application and general collaboration and file sharing seems to be the only useful thing that comes to mind. It seems the space is extremely crowded a number of big players already, providing some nearly impossible to beat software.

As crowded as the field is, it also seems to be relatively untapped as an overwhelming majority of businesses use in-house software, prefer not to use anything, or simply don't even know what the internet offers yet.

Any thoughts on the current market for business web applications as well as trying to jump into a well-established market such as this one?

Thanks as always..