Everything in chronological order, as best I can remember it.
1996
bathsheba.com
I acquired this domain and set up the earliest version of this site.
1997
Rhinoceros
Rhinoceros, the CAD program I mainly use, was in beta, positioned as a lower-cost yet full-capability NURBS modeler. I liked it because 1) it ran in Windows, 2) it was not a boolean modeler like Solidworks, and 3) the beta was free.
Z Corporation
I got my first 3D printed parts from ZCorp. Dave Russell, then their Director of Engineering, took an interest in my designs, which were some of my very first CAD models, and sent free samples. This was encouraging.
2002
CrystalProtein
I launched
CrystalProtein.com, a service for laser etched protein structures in glass. It is still going.
2003
Ex One
Ex One, at that time known as Extrude Hone, launched its steel printing process, then called Prometal. It was mainly targeted on industrial applications, but the company was also interested in working with artists, to liven up their trade show booths and show what the process could do.
2005
Quin Lamp
Probably my most documented design. I have a stack of coffee-table books with lush photos of this, which I suppose signal its entry into some canon.
Flame Lamp
Pretty shadows, but it didn't do as well as the Quin. A krinkle-fries texture was added late in the design process for obscure reasons. I never got a sample so don't really know whether it worked.
2007
Time Magazine award
The Quin lamp is one of Time Magazine's "100 Most Influential Design Objects" for this year.
2009
Shapeways Shops
Shapeways launched its Shops. I was first to sign up, which mainly means that if you sort the shops by "newest", mine is the last.