Some are saying Guest Posting aren't going to work? Because they are flooded with spam PBN sites. Do you guys agree?

Having tons of urls does that hurt the ranking in the SERP's?

If I make my blog's comment do-follow? How it will effect my site?

How many keywords should I have per ad group?

For small business which has a single product. How do you expect the owner to mange?

Say people are searching for content and there are textual content for the keyword. But if I put a Youtube Video then it will be unique and will I rank better in the google SERP's for it?

Writing Sales Copy, what do you guys focus one?

We have been using some tools of various options to build landing pages for our wordpress site. No,what we do or what tool we use the static html files when uploaded to our blog. They tend to have a very slow loading speed. So, we are looking for a professional landing page builder.

See here is a query regarding postcards. We have built a list of people who are probably interested in our services, these are basically opt-in addresses. If we mail them then what to expect that the mail response time will be? Anybody any knowledge in this field?

How people are supposed to make money from Mobile Marketing?