I've been on an organization/purging kick lately and found the following resources while surfing in the wee hours when I should be sleeping.
Clean Mama Blog- excellent blog posts on green cleaning, spring cleaning and housekeeping along with project ideas and organizing. My favorite? Her step by step clean ALL your bedding blogpost (I'm not a fan of flat sheets, either!)
Simplify 101- professional organizers that provide online workshops and offer a good selection of free tips and articles on organization. I liked the fact that not only did the tips cover decluttering, organizing and cleaning on both home and office, but it covered productivity and life goals/changes as well.
Crazy Domestic Blog- good articles overall on cleaning and organizing but the one that got me really excited was this guest tutorial on etched glass storage jars. So cute! (I am totally doing this for the holidays).
My new discovery: Podcasts on Organizing (I'm still in the process of finding which ones I like, but it never occurred to me to check itunes for podcasts on cleaning/organizing)