A subsidiary of Google, blogger.com gives everyone free access to write their own blog. It is integrated with Google+ and other Google properties. You can make money on your blog with AdSense, post multi-media and customize your blog.
LiveJournal was one of the first and remains one of the largest personal blogging communities on the web. As of August 2012, it had over 52 million online journals and communities.
Website that contains a food diary, exercise log, charting and reporting tools, health related calculators and weight loss forum. Membership is $9/month.