I am not the first to comment on this, and I certainly won’t be the last, but it is most worthy of additional mention. LinkedIn has opened up its OpenSocial platform for development of applications that can be added to profiles. Early options include offerings from Amazon, Google, Twitter, WordPress and more. LinkedIn’s announcement about the new apps can be found here.
It is no surprise that LinkedIn is beefing up: they recently acquired an additional $22.7 million in funding and have seen significant user growth. It is equally unsurprising that people turn to a professional social networking site in tough economic times to improve their network and their safety net at the same time!