Link building is one of the hardest and one of the most important things that you have to do if you want to get high rankings on Google. As it takes so much time to get inbound links, it is very important to make sure that the links to your website contain the right keywords.
The basics about keywords in text links and link bombs
Google tries to find a relation between the words that are used to link to your site and the content of your website. If many websites link to your website with the word “tomatoes” then Google’s algorithm will come to the conclusion that your website should be listed in the search results for the keyword “tomatoes”.
The keywords in the links to a website have been so important for Google that people managed to get websites to the top of Google’s search results for very obscure keywords. For example, some people started a scheme in which they asked their friends to link to the official website of George W. Bush with the keyword “miserable failure”.