Having all sorts of unrelated links is considered by Google as link stuffing and an attempt to cheat the search engine. This will get you penalized if you link to one and quite possibly banned if you yourself make links that are unrelated to your business.

Link farms are traps that you need to avoid. They can do a lot of harm to your site. If you partner with them and if you compile one of these infamous link sites you can get banned by Google. This is because link farms are just as the name implies a site full of links from anything and everyone. There is no relevance or quality to these links and Google will not accept this type of site with just a huge number of varied links. This type of site will not help their customers with their searches and is considered useless by Google.

Other linking methods that Google will not like:

What sort of links is Google looking for?

-Links that provide good resources to your visitors and Google’s customers
-Not too many links on one page
-Links that are relevant to your business
-Links to quality sites-providing good resources to your visitors
-Try not to put too many links to a page-10-20 is enough
-Categorize your links- put your links into categories. This is very helpful to your visitors (Google’s customers)