Using cargo collective and searching the self promotion tag brings up many posts showing various self promotion techniques. This is a brilliant resource for exploring contemporary methods of promotion that are being undertaken by artists right now.
A thorough introduction to self promotion cover every possible avenue from mailing lists, to portfolios, to exhibitions. A really useful article when getting to grips with the idea of promotion.
This article offers really good explanations of the various methods of promotion via print. It details business cards, stickers, greetings cards and postcards, posters and brochures, giving pictorial examples of each and shows the different ways of doing each. This page offers quite a lot of inspiration in terms of self promo.
A set of tips on the entire process of self promotion. Really useful bits of information when beginning to promote oneself.
A few articles showcasing some student self promotion projects, some nice ideas here in terms of packaging and content.