Wridea is a Web 2.0 tool for capturing and organizing ideas. Kind of interesting, but it seems to me you can do the same thing with regular text or document files. You could even share them on Google Reader.
Your humble Lifemuncher, Jennifer George, spends her spare time compulsively improving, replacing, rethinking, and refining her organizational system. She earnestly believes that once she's found the perfect notebook, she will achieve a mind like water, stress-free productivity, and eternal bliss. Until then, she writes the occasional blog post and enjoys her life as a nonprofit professional in Los Angeles. Her less productive blog posts can be found here.