Watch what are you linking to, it matters

It is very important to keep eye on what your website links to :

1- Many out going links is killing for famous websites this includes advertisments, there are millions of websites over the internet, now it is easy to get back links, you should know that you are passing page rank to every site you link to.

2- Linking to sites not liked by search engines as download sites, stolen software..etc. may get you out of search results

3- Do not provide advertising for any website, you should revise it, advertise only quality websites like adwords.