The Odyssey Patch brought in a lot of new things. Exploration got a serious make-over. I have gone back and re-written my original post about Exploration so that the new system is properly covered. I'm still looking for a good video tutorial of scanning however. The ones I've seen don't really cut it.
If you want to reread the Exploration post check this link http://eveboffin.blogspot.com.au/2012/07/exploring-exploration.html