Each day brings new entrants into the social planner space. Here’s a quick recap of the key new entrant market positions:
democratic planning for casual near term events — Planypus, Renkoo
casual planning via calendar and email extension and integration — Google events
workflow and vertical integration — MyPunchbowl
Now let’s add two more:

tying event invitations to charity [...]

I’ve been getting dozens of comment spam per day on my MySpace profile from users of ProfileWatcher. The spam reminds me of the invitations that were sent to the MySpace friends of Multiply users who volunteered their usernames and passwords. MySpace eventually shutdown the spamming. ProfileWatcher spam hits the inbox and asks [...]

I tried to upgrade my XP SP2 installation to Vista RTM three times. Each time the installation made it through all the way to the final reboot when it died with a BSOD. This despite Microsoft’s Upgrade Advisor giving the green light. After the third failure, I ran Dell’s own Upgrade Advisor [...]

With all the attention I’ve given to nascent Web 2.0 event planning services, I’ve overlooked the offerings of the big gorilla Google. I used Google’s evite-like invitation service a while back when I first came across it but the reception was tepid and my interest in the space was nil, so I promptly forgot [...]