I think "Factor" is a good name for a programming language, it's memorable and it conjures up appropriate mental images. That the word has both of these qualities ensures that it will be used for many other things, and this will be true of most good names. Instead of worrying about the googlability of "Factor", can't we count on people to at least search for "Factor programming language"? And if Google isn't already returning good enough results for that now, I think I'd rather wait a little while for search technology to catch up than compromise on the names of my programming languages.