A twitter account with about 12k followers from various races, ethnic group and countries of the world. A lot of verified accounts also follow in their numbers, my followers very interactive and friendly and funny, they range from teenagers to adults, but they are mostly teenagers. I'll tweet your link TWICE a day, for FIVE days to get you the required traffic.
Limitations - What the user will and will not tweet about.
I will not tweet anything that contains pornography, discriminates races, directly insults or ruin someone's reputation.