What program that you likely to choose for earning extra money on the web?

i'm an artist and i can earn extra money using my talent at deviantart. it's a social networking site for artists. i can earn from $25 to $40 per character in a day. my full illustration rates starts at $250 and i can finish it in 4 days. i even have accounts on freelancing sites. clients there pays more and order artworks in bulk.