Gabriel Weinberg
apathy - the first album (2000).
Ask YC Archive
Blog - More questions than answers.
Duck Duck Go - pre-launch beta.
Group-O-Matic - Form groups to meetup off-line.
Kangadoo - Used by Parents. Loved by Grandparents.
nth Club - Golf social network for private club members.
Philly Area Startup (Monthly) Hackathons
WatrCoolr - What everyone's talking about...