Promote websites by posting on forums - NO SPAMMING

This is a peculiar project, sort of. I need someone who already posts (or is willing to post) on different groups and forums, such as Google Groups, newsgroups, usenets, popular forum sites, etc. The signatures of that person's accounts will contain a blurb containing a link to one of MY sites. The person will continue to reply to threads, participate in discussions, post messages, in other words, post normally. ABSOLUTELY NO SPAMMING - He or she would recommend or mention the site in his signature only if it appropriate. I need that person to post: 10 posts a week from an account with a signature promoting a humor site (hence, posting on humor forums and humor-related groups) 10 posts a week from an account with a signature promoting a funny pics site (hence, posting on forums and groups interested in funny pics) 10 posts a week from an account with a signature promoting a medical information site (hence, posting on medicine and diseases-related forums and groups) 10 posts a week from an account with a signature promoting an advertizing networks review site (hence, posting on webmaster and SEO-related forums and groups) Total: 40 posts a week. I am willing to pay up to 25 cents a post. That comes out to up to $10/week, roughly $40/month. The project will be ongoing for some time - there is no completion date. I might change the sites promoted in the signatures. Every week you will send me an email with links to your posts (just, keep a text file open and paste a link with your post into it) - and I will pay you $10 via Paypal. Please do not bid more than $40 for this project.