Mixin is a new Swiss-based startup that aims to aggregate your activities into a timeline/agenda. Basically the way Mixin works is that it can aggregate your event timeline from sites like Twitter and you can also place events directly into your timeline through Mixin.

Here’s an example Mixin activity page. It’s basically like a messageboard thread where you start the thread with your event. Your friends can then note if they plan to attend, leave comments and embed photos and videos. Events can be sent to Mixin by mobile sms, IM and email as well. Then you can post the event to Facebook and/or Twitter. There’s also an API so developers can build on top of what Mixin offers.

There’s color-coding for event types so you know whether to pull out your finest shoes or flip-flops. When you setup your friends list in Mixin, you can decide if they person is just an online friend, or if they are a "real" friend by placing a star next to their name. Friend updates can be sent to your email or mobile.

Notifications can be setup daily to remind you of upcoming events. It would be great if you could include an address for the event or a conference URL. There’s a link to Google Maps but without a specific address it won’t work correctly. A connection into Google Calendar and the other online calendar applications would also round out the service.

You can also embed your timeline into a blog, Website or email. Here’s what my embedded Mixin timeline looks like:

Mixin supports OpenID and the overall interface is pretty slick. The "how to use" guide is very interesting as it actually layers on top of the service so you can interact with the service while looking at the help.

This is one of the most interesting services I’ve seen as of late. It aggregates and leverages content from other sources but can also survive alone. I could see Mixin doing very well if it can gain some level of traction.

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