Serendipity: to make discoveries, by accident and sagacity, of betas not in quest of.
(paraphrasing the Wikipedia)
GetVendors
GetVendors.com provides users effective ways to manage household chores – from finding right local service professionals to managing/tracking projects, contacts, and to-do lists. Our community forums help users share their personal experiences, seek advice, and make informed everyday life decisions.

BlogSpin
BlogSpin is the best way to stay in touch with your friends. Discover the people and things that matter to you most.
BlogSpin is simply an icon (jpeg image) that you can add to your website which allows yourself and others to share share information better.

Nozbe
Nozbe is a web-based application that aims at helping you get things done.
The idea behind getting your things done is simple – you need to clear your head and put all of your tasks and projects into the system (Nozbe in this case) and later identify all of your “Next Actions” and focus only on them in order to move forward.

YouOS
(Still wayyyy alpha.)
YouOS is a web operating system that lets you run diverse applications within a web browser. Small applications like sticky notes or clocks. Large applications like word processing, mp3 players, and instant messaging. Even better, it’s very easy to tweak an existing application or write your own.

Tangler
(we’re currently operating in ninja mode (that’s stealth, but dangerous))
building the next generation in internet messaging
update 1/1/2008:
Tangler has been released.
