How to know a page is worth linking to?

Hi,

do those email verifier programs do a decent job of removing bad emails? If not, anyone know a better option for cleaning a list and preventing mass bounces?

Our product already has a support forum. And its growing pretty well. Should I add a blog too?

I am looking to create B2B Videos for our businesses. And looking for a professional Video Maker Agency. Anybody any suggestions?

Recently I have joined a PPC Agency. To earn knowledge and experience in this field. I intend to start my own PPC Agency some time near the future. Should I tell my co-workers or anybody in the office that I do intend to start my own agency?

How much percentage of the price of the original product should I pay to affiliates? Anybody any ideas? Its a digital good.

How many pics can be posted per day?

How to create the best Squeeze Page ?

I have tried almost everything trying to get sign ups, facebook ads, adwords etc. But the cost is too high and also not too much sign ups.

For the last couple of years we have sold many digital items. And as the time passed we have collected a huge list of probable buyers but here is the fact that we have never marketed it through emails. Can I email them and try to market the list?