As of June 2011, I’m making investments exclusively through my firm, ff Venture Capital; our portfolio is here.
I hold equity positions in the following companies:

Navon Partners

(acquired by Oodle)

Founder Institute, New York Class of 2011

Founder Institute Singapore, Inaugural Class 2010

Founder Institute, New York Class of 2010

Founder Institute, New York Inaugural Class 2009

We also own a number of domain names, and welcome suggestions for partnerships/development. Among our most interesting domain name assets:

aftertaxreturn.com
alphacub.com
alumnirates.com
bankably.com
BDBot.com
dealorigination.com
eduventurer.com
eliciter.com
institutionalregistry.com
marketinefficiency.com
marketinefficiency.com
netirr.com
onlinebusinessnetworks.com
privateequityblog.com
prospectingcycle.com
relatedparty.com
spright.com
straightvalue.com
totaldollarreturn.com