raptitude.com is a great source of articles to remind you of the things that were compelling to you at any point about mindfulness and/or meditation. I also recommend the spin off http://campcalm.com if you're interested in meditation in particular.
If you're after books specifically, "Wherever you go, there you are" by Jon Kabat-Zinn is also good.
If you're after books specifically, "Wherever you go, there you are" by Jon Kabat-Zinn is also good.