Well,
Yahoo! 360 is a personal communications portal operated by Yahoo. It is similar to other social networking sites and while the text on the website even described as being in beta test in development is ended and the site is no longer active.
What you think about it?

Yahoo! 360 was another failed attempt into social Web sites.

It is the Social network service operated by Yahoo! It is the Personal Communication Portal. I like following features of Yahoo! 360.

1) Blogs
2) Photo sharing
3) Easy communication
4) Yahoo! contacts management
5) My Friends page

Yahoo 360 is a social network operated by yahoo it was launched in 2005, but officially it was closed in 2009 was already replaced as Yahoo Pulse where you can update status, connect with other contacts. etc I don't have any idea how you can use yahoo 360 or (pulse) in marketing but maybe you can use it to connect with people who might be interested in your niche.

Yahoo 360° was a public media website managed by yahoo and it was released in 2005, but basically it was shut last year because of some company reasons...

hmm great topic thanks for sharing informative info.

Well, it's truly unique for me. As Yahoo! 360 is really exclusive for me. I am really impressed to know about this personal communication portal which one is operated by Yahoo. Thanks for updating to us.