If you are the slightest interested in astronomy, you already know this. U.N. have made 2009 a year devoted to astronomy. Here are the sites you want to visit to learn more:

IYA 2009 – Main site

365 Days of Astronomy – something new everyday

100 Hours of Astronomy – Events around the world

Portal to the Universe – New portal

She is an astronomer – New site

Updates will follow.