I had the great pleasure of listening to an interesting Facebook talk by Julie Hall last night at the Social Media London meetup. She did a great job in spite of not having a big screen to show the audience what she was talking about - no mean feat!

Facebook is a place to interact with friends and family online. It's great for sharing sharing holiday snaps and video clips from your iPhone with your social circle. But there is more to Facebook, everyone from Goldman Sachs to Aaron Sorkin have realized this already.

The much anticipated change of Facebook's messaging system was finally launched a few weeks ago. They are rolling out the new features to users in phases, I got the new system on my profile recently and I got around to testing it the other day. I am happy to report that it ain't too shabby!

With the half billion user reach of Facebook, most companies have realized they need to have a presence for their brand. This is especially true for any company operating in the business-to-consumer (B2C) space, like consumer brands, local shops and restaurants.