Working in a startup, you are always aware of possible "exit strategies": ways that your company's startup phase could end. Good ones are acquisition and IPO. Bad ones include running out of money. Well-regarded calendaring site Kiko has a new one: auction the company on eBay.
They've built an impressive site. Their reasons for selling it seem a little capricious:
We are selling Kiko because we want to have time to work on other projects as a development team. We had a project in mind we just didn't want to wait on :)
They may have a problem convincing future investors that they are in this for the long run, but if it works for them...