ThisMoment is a new service, still in private beta, that lets users create timelines of their life. Similar to Dipity, which got a big boost in traffic earlier this year , the goal of ThisMoment is to put together a personal timeline that can be shared with others.
Users can create "moments" which get a timestamp and several Wiki-style placeholders for content like maps, user comments, and a space for other users to add related links. These events can go into a public or private feed, where other users can join to become "in the moment" or copy the entire page over to become the start of a new event.
While moments are the focus of the service, to a certain degree the real star of the show is the timeline. Each user has their own, which also gets fed into the public timeline. You can see each a preview of what each moment is simply by mousing over, and once it reaches a certain horizontal width you get a scroll bar that lets you skip around quickly--even to the future.
I'm not willing to pass judgement on the site until I get access. Currently it's taking beta sign-ups, however you're able to freely explore all public moments as created by its users.
Note: ThisMoment was created in part by a group of former GameSpot.com employees. GameSpot.com is a property of CBS Interactive, publisher of Webware.