If you do too many link buiding like following,it may destroy your website brand or get your web site banned/penalized/filtered by major search engines
Free/Paid Directories
1. Submit your site to 200 pool quality paid directories (averaging $10 a pop) that send zero traffic and sell offtopic run-of-site links.
Post spams in Forums
2. List 100 Web sites’ url in your signature line.
3. Exclusively post only when you can add links text to your website in each post.
4. Post nothing but “me too” or “thanks” posts to build your post count. Use in combination with a link-rich signature file.
5. Ask questions about who provides the best [WIDGET], where [WIDGET] is an item that you sell. From the same IP address create another forum account and answer your own question raving about how great your own site is.