The Warrior Forum is a popular forum for Internet/digital marketers (especially affiliates). It has been around for a number of years, since 1997 I believe – I first joined all the way back in 2007, and it was very popular at that stage.
It’s a place anyone can come and discuss:
Strategies and tactics for making money online
Selling digital marketing services to offline businesses (so selling SEO or PPC or whatever). This was becoming a really hot topic when I first joined, as the early days of the WaFo was primarily focused around selling digital products from websites.