Dissatisfied SAA customer

Yahoo answer can influence SERP ? Im doing a research project for SEO and keyword placements. I have dedciated the site to South African Airways. Do you know if a website like YAHOO ANSWERS and posting a question here have any influence on your own website? When you post a question here the question is indexed and placed in the SERP quite quickly ( Ive had 60 minutes placements). What I want to know if anyone knows if that ultimately have an influence in your own web page with the similar keyword ie SOUTH AFRICAN AIRWAYS?? Although you are allowed a link in YAHOO ANSWERS to your domain, I cannot find any record of that having any effect at all?? Help and suggestions GREATLY received and APRECIATED.