In order of appearance, we did:
DWARVES
HALF ORCS
ELVES
HALFLINGS
GNOMES was never released. Much of the work I did for Gnomes had to be scrapped when 3.5 "changed" them, by which point, also, demand for d20 products had been seriously depressed. It was a double whammy for the Gnomes, sorry to say.
Not coincidentally that release list pretty much reflects my own interest in the races (in descending order). Of course as most folks who know me already know, I was only ever writing stuff that interested me, anyway. A little money on the side was nice, but breaking even was all that really mattered. With Gnomes, it was looking like even breaking even would be tough.
However, I can guarantee you that if I revisit Heroes of High Favor for 4th edition, I'll do things a little differently, to include giving the Gnomes their due.