Ua hoʻokuʻu ʻo Schmap a ʻO ka loiloi Twitter profile tool that's quite comprehensive. By doing a comparison analysis of your followers to other accounts, Schmap can provide you with a detailed analysis of where your followers come from, what professions they are, their demographics and even their influence. There's a free basic analysis as well as a hoʻoili piha ʻana. The analysis pricing depends on what kind of account you're analyzing but ranges from about $25 for a non-commercial user to $125 for companies.
About ʻO Schmap: Schmap is a location technology service provider and local publisher, with cutting-edge expertise at the intersection of local, social, commercial and the real-time web. We're best known for our real-time city guides, and our popular Twitter service.
Eia kekahi mau helu helu i kaʻana like ʻia mai ka piha ʻana no @douglaskarr (ʻoi aku ma mua o 30,000 mau ukali!).
Na ka Mokuʻāina
Na ka ʻOihana
Na ka hoihoi
Na Twitter Hoʻoikaika
Na ka Haʻawina Twitter
By how long they've been on Twitter
E nā ʻano o nā moʻokāki Twitter a lākou e hāhai ai
There were some additional stats as well, and a detailed analysis could be downloaded as a CSV. If you're wanting to ensure that you're attracting the right audience, I'd encourage you to purchase the hoʻoili piha ʻana. The resulting data I received validated my strategy for attracting Twitter followers and I'm happy with the results. The only area of concern for me was that I under-indexed on female followers. Perhaps it's my constant stream of geek talk… definitely some work to do.