Many websites on the Internet will link to your website if you pay them for the links. Is this a good method to increase the link popularity of your website or can you get in trouble if you use paid links?
What does Google think about paid links?
Google is very clear about paid links. [...]

source: Axandra.com

Search engine optimization is not difficult if you understand the basic concepts. If you know what to do, your website will get the best possible rankings on Google and other important search engines.
The following list will help you to better understand SEO or to explain SEO to your clients:
Four things you should [...]