Why you want paid links when you can get them for free? Buying and selling links is against the webmaster guidelines, so, you are going to do something which is not acceptable. Organic link building may take some time to show results.... but at least you do not need to worry that you will loose them once you are out of your budget. Some easy and good link building techniques - Directory submission - Submit your website to social bookmarking websites - One way linking with niche related websites - Blogging/ Blog Commenting/ Guest blogging - Article submission - Placement of anchor text You can use 'Keyword Country' for automating these techniques... Helps in saving huge time!