X-Lint - provisional patent obtained, Wal-Mart business plan competition won.
Schlep2.Work - based on the concept that commutes are ridiculously wasteful allocation of resources and we can do better.
BetterFit - based on the concept that employers and employees really suck at matchmaking and that OKCupid could teach them something and create trillions of dollars of annual value in the process, benefitting myriad stakeholders.
Mana Mushrooms - another original idea and business by the author of this blog.
Lightservers, parent of netupgrades and spinoff of Mana Threads - all threads in the author's entrepreneurial tapestry...