This is is a MySQL/DBI Perl script, and has the following features:Clients register and must confirm email first before posting adsClients can add ads to categories, and some categories can be charged forThe payment process is automatic using PayPal, and works by depositing money in their account first, which they can use toward their adsThere are RSS feeds of the various categoriesYou may search the ads, or view ads by categoriesPaid categor...