In order of ease of "attainment":
1. Married women
2. Internet chatters
3. Chicks just out of college who moved away for the 1st time for their first real job and still have their long-term BF "back home"
4. 27yo chicks who have been dating the same tool since college or shortly thereafter, and are either a) scared cause they are about to get married or b) getting bored or c) mad cause the BF won't commit to marriage
5. Prostitutes
6. 30+ women who are not in relationships
7. Single, young women