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If you look at the Moz On Page Report that I linked to above, it'll give you specific instructions on other fixes you can do to optimize your page. Follow those guidelines on all of your pages, and you should do well.

I feel like there could be conflicting answers on this one Social sharing has been such a popular thing to push for, more I think conceptually than for reality. Very few pages within a site do well with sharing - it's just usually not the type of info users want to share (no matter what marketers want to believe or what industry experts want to tell us). The proof is in the numbers - so start there. Are people sharing your content? If they aren't, then what have you lost by removing it? (And I realize you kinda answered this question for yourself.) I'm of the belief that it works best on pages where there's content worth sharing - news, white papers, contests, etc. - if your system allows for specifics like that. And if the change with the social sharing overall will improve the user experience (like with load time), then is that a better trade off? Since websites can have such different CRMs/platforms/coding, there's many things (I think ) that can play into performance or issues. Like, you resubmitted that trade show page and it may have jumped because Google hadn't crawled it in a long time, vs. because the social sharing changes. Just a possibility.

Thank you for the kind words. I send you a private message and feel free to contact me no charge for my advice

Sorry, I'm confused about the setup. Hosts routinely run multiple sites off of shared IPs, but each domain name resolves as itself. Users and search bots should never see that redirection at all and shouldn't be crawling the IPs. This isn't an SEO issue so much as a setup issue. Likewise, any rel=canonical tags on each site would be tied to that site's specific domain name.

You can do it using the rank checker tool. From what I know that tool will see a revamp and totally integrated in the app, where - I suppose - a manual actualization will be available.

I agree with Egol. Conversion rate would be a deciding factor. Current position and ease of improving that position would also be a factor. Cost of maintaining a position should also be considered. If all things were equal and you are looking at pure traffic numbers... Keyword A - 3,000 at 19% = 570 Keyword B - 20,000 at 7% = 1400 Go for Keyword B.