SERPs and buying links ?

I am nes too websites so this might not sound like a bright question but what does serp mean and stand for?

I also want to know what the diffrens between buying links and buying directory submissions is?

 

SERP= Search Engine Ranking Position
It tells you how good (or bad) your site ranks in the search engines for a certain keyword or keyphrase.

Difference between link buying and directory submissions=

When you buy a link it is placed for a limited time on a topic related website
This can improve your PR (Google PageRank)

When you buy a link in a directory, your website get's listed in that directory under the appropriate sub-category.
An example from a good (but not free) directory is Joeant.com

 

As far I know SERP = Search Engine Results Page.

 

SERP stands for Search Engine Ranking Position...it tells how your site ranks to a said keyword or keyphrase with your competitors....

 

Ok maybe there are two differnet accronyms. SERP and SERPS

SERP - Search Engine Ranking Position

and

SERPS - Search Engine Result Pages