Do Adwords affect organic rank?

[Retail_Endeavors]

I used to rank 2 for "guitar outlet"  I just dropped to under 50th.  Only change I made was to pause a Adwords campaign where I was including that keyword.  Oddly enough, I believe I ranked high for that keyword BEFORE I added it as a keyword, but I cant be 100% sure due to lack of timing notes.  But is it common for adwords to affect organic?

If not...where do I start to look for the answer as to why it dropped?

[dotfly]

dont misunderstand me (dont want to be unpolite by just quoting this link below) but look here:

http://moz.com/community/q/how-google-adwords-can-impact-seo-ranking

maybe this will answer your question...

[SamMaley]

Hi Joesph,

Adwords can have positive effects upon your integrated digital marketing strategy, but it is widely considered to not affect organic rankings at all.

If you have suddenly dropped to around the 50th rank from no. 2, then this is more likely due to a manual penalty.

[CommercePundit]

Never,

Adwords don't have single peice concern with organic result.
It might be because of manual penalty. Or sometimes what happen, We are doing work continuously and we are also getting result very good, but when Google robot evaluate all things at once, then you can be penalized.
OR Another cinerio is that, If you have made bad links or any of your comeptitor has made bad links on behalf of you, and Google crawl those links then you can be penalized.

Hope this will clear your confusion.