What are the top twitter tools that you use?

Recently we launched our mobile site. We get plenty of visits but didn't get any sales. Why is it?

If you have to choose some words that states low priced products for your adwords campaign. Then which ones you will choose?

Does anybody here use Spyfu? I mean they do provide pretty much good keyword research tool.

How many Ad Campaigns do you run at once for a single product??

I am having really a hard time finding serious Affiliates for our products, its in a odd niche. Where I can find them?

We have a support forum in one of our sub-domain which has earned many links over past couple of years. Now we have started a blog in another sub-domain. Will the links on the support forum's sub-domain help us rank for the blog?

Suppose, if I get a very high authority link for my site. Then will it change the fate of the entire site, is it possible?

How much does a good Link cost?

Quality directory postings are still in use. So much do you guys spend on directories?