Bounce rates are damaging my site's metrics. Most of them are just fake traffic. How should I get rid of them?

Our site provides Local House Fixing Services such as plumbing, wooding etc. For say if you search for these term we rank in the first or second position in your country. But the CTR is too low its below 1%. How can we improve our CTR?

Is Blog Commenting Dead? I mean if I meant to do them for link building.

How can I improve my ad position so that I can get a better CTR?

Has anybody got lucky with Adwords in a niche that has most of traffic from mobile devices?

If yes, then share some tips and tracks.

I have an online course to sale. So, I have built organically an email list which is around 20k subscribers. And I have been sending emails to the list. Since then I have send emails to almost half of the subscribers in the list. But still no sales, plenty of of click throughs but no sale. What to do now?

Should I consider installing w3 Total Cache installing to our wordpress site in order ease up the speed?

Are the Meta Description still important? Should we consider adding them to all of our pages.

Facebook or Twitter, who will win in order to get a content viral and make a good exposure to its audience. Answer with valid reasons please.

Its really embarrassing. We are promoting our product through banner ads by A PPV campaign. So, far we have got 2500 impressions over the banner and only 30 clicks from it which has not converted a single time. What to do next? Am I doing something wrong?