Mixi.jp - "Community Entertainment"
I have been appearing, or community "blogging," on Mixi, a Japanese online social community.
The difference with other communities is that (1) all interface is done in the Japanese language, (2) 90% Japanese users based in Japan, (3) you can pick icons using photographs (similar to xanga.com in this respect, (4) you can join and start discussion threads under communities that you can join or start (like Contacts in Flickr), (5) you can "see" who visited your site with a feature called "footprints," which are left by other users and link to these users directly, (6) you can have your online picture album, mail box (limited to Mixi users and no messaging), mobile uploading in once place (like Myspace), or you can play tricks and remain an anonymous user.
Don't have any complaints about any of its features, except that perhaps Blogger could adopt one of two of the more useful ones.