RealCrowd: Really interesting startup but with the recent housing crisis they may have trouble convincing people it's a worthwhile investment and not a total gamble. I'm really interested to see where this goes and if it ever moves to include the general public (i.e. non-accredited investors).
StatusPage.io - I'll be using this immediately. Useful product and it looks like they already have quite a few high profile companies as customers. Hard to have an opinion on the pricing as I've no idea how many users would subscribe to these notifications.