I was inadvertently targeting the keyphrase humorous stuff, and after about three weeks, I got over the domain humorousstuff.com. I thought it was cool, and I wasn't even trying that hard with that keyword. Now it's not even the first page though, I'm #2, behind eBaumsWorld. I used to be targeting four "humorous" phrases: Humorous, Humorous Stuff, Very Humorous, and Humorous Pictures. Humorous and Humorous Pictures get around 200 and 97 searches a day, respectively, and the others are REALLY low, lower than I expected. I'm dropping them all and targeting one keyphrase: Funny Stories. It's going to be hard, but right now I'm #11, and it already is making a difference.
That's great and I don't mean to burst your bubble here, but of the three keyword search tools I use, a search for "Humorous" does not bring up and searches per day/month for "Humorous Stuff". It would be a little more difficult and more of and achievement for you to rank for "humorous quotes". but congratulations anyway.
Good to hear that! Probably because people would rather search funny than humorous, not everyone can spell it heh.