I'm in Dubai next month for IIR's Middle East HR Summit, and have just been reviewing some of the blogs etc out that way.  I thought this was particularly interesting - on HireMENA:

40 Most Important Social Media Tips for HR Professionals

I can't say I agreed with all the recommendations (eg nixing boss employee friending?), but there can be no arguments with #36:

Join ConnectingHR: As an HR pro, you have your own social community already set up and waiting for your membership. Members say the networking and resources can’t be beat.