The big action at the moment is in the Northern hemisphere summer where polar sea ice extent and the hurricane and cyclone seasons are just beginning.
Neven's Arctic Sea Ice
http://neven1.typepad.com/blog/ has a crowd source prediction where you are invited to predict the minimum extent, which should be in September. The website is a great source of information on the polar ice region.Hurricanes and cyclones are well covered by Wunderground http://www.wunderground.com/tropical/?MR=1
Where Jeff Masters puts out excellent comments and information on the latest events.
There are a lot of bloggers on both sites so there are plenty of people to exchange views and news with.