Crunchgear is reporting the growing importance of mobile devices to social networking giant Facebook. “Facebook strategists clearly see the potential for growth in the mobile sector, seeing as 13 percent of their users log in from their phones.”

With the likelihood that traditional desktop growth opportunities are slowing for Facebook, this is no surprise. Personally, about half my Facebook usage is now mobile.

It’s interesting to note that as more and more employers are blocking Facebook - and other sites of their ilk - that employees are accessing such sites from the phones. Take that, boss! It’s a trend that’s likely to impact job search as well, as a growing number of employers crack down on career destinations.

I fully expect future phone purchases to have direct access to Facebook. Maybe it’ll be just like the Internet Explorer icon that’s present on just about every PC bought today. And it makes sense: The company has done a great job providing mobile-friendly Web sites for a wide variety of devices. The article points to deals with Palm and Nokia, but the race is certainly on for domination of the mobile “desktop.”

And no surprise the article touches on MySpace, saying “We’ve also heard that MySpace might be announcing support for Nokia and Palm phones (which wouldn’t be surprising given that its CEO is giving the event’s keynote).”