Can you recommend any books, blogs or websites that are focused on Olympus and/or Four-Thirds (micro and standard) equipment?
This is my go-to resource http://www.four-thirds.org/en/microft/.
At this site, you can find up-to-date news about the Micro Four Thirds industry (new cameras, technology breakthroughs, etc). They also lists the different cameras available in the Four Thirds and Micro Four Thirds formats. They appear to be sponsored by Olympus, but give seemingly unbiased information.
4/3 rumors (http://www.43rumors.com/), while mainly about rumors for new products, also has a good bit of discussion about available lenses and ways to use these cameras.
The forum section at http://www.dpreview.com/ tends to focus on equipment. Checkout "Olympus DSLR Talk" and "Micro Four Thirds Talk".