I think it is important here to note something that is a bit of a misnomer in the industry.

Page Authority (PA) and Domain Authority (DA) are NOT measures of how much a page or domain will benefit you were you to receive a link from it. They are machine-learned keyword-agnostic predictive metrics for rankings. That is to say, a high DA domain or high PA domain are more likely to rank, but they are not necessarily more likely to help your site rank were you to acquire a link from that site.

We know that the most important raw metric still continues to be the number of root linking domains. We also know that nearly all published link graph calculations look at metrics like the number of links per page to divide link value passed from one page to another. Subsequently, the actual value you get from a link can be wildly different than the PA or DA might suggest.

I would take a different approach altogether. If you spend even a second considering whether to get a link or not because of its PA or DA, you have wasted that second. While using PA, DA, MozTrust or MozRank to sort opportunities might be useful if automated and asynchronous, you should never stop and sweat whether it is worth going after a link. Of course it is. Get that link. Go get it now.

Happy link hunting

Luckily with the Google Hummingbird update, Google is better able to map together phrases with identical search intent. "Car Accident New York" and "Car Accident in New York" return very similar search results, and you will see this across the board for very slightly modified long tail phrases. I would use the words and phrases in a syntactically and grammatically correct fashion, rather than focus on getting every variant.

My guess is that Google is getting better and better at detecting false review data. There is a lot of academic research around this area, particularly in accounting fraud, where patterns created by humans to appear random do a poor job of actually representing standard data. A popular example of this is called Benford's Law where leading digits of certain data sets (like electricity bills) are more likely to be lower digits (starting with the number 1, for example). When people try and fake the data, they don't tend to follow this law.

Google has huge data sets on validated reviews and known-fraudulent reviews. If there is a way to detect unbelievable reviews, you got to believe Google is working on it.

That being said, this is probably the best reason not to start posting fake reviews... it's illegal.

This is default behavior and you should keep it. It won't harm your rankings at all. I am not sure where the redirect is occurring in your install, but I wouldn't worry about it at all.

Here is a write-up on it from Google.

I second the responses of those above related to increasing your brand. The strongest evidence of this weakness is that your domain, zotey.com, does not rank #1 for the keyword zotey. It appears that you sell testing supplies and list a number of "partners". Do those partners link to your website? Is there any way to reach out to them and solicit a link?

If you can, find an exact or close-to-exact replacement on your new site and 301 redirect. You might want to go through analytics to find any trafficked pages and make sure you have them 301 redirected as well. In some cases, you might need to 404 pages, but make sure the 404 pages are useful to help your users find the best content on the new site.

Unfortunately, Google hasn't been very clear on this issue. Words like "maybe" or "could" pervade their statements on hidden content because sometimes it is legitimate and sometimes it is not. Here is the latest report from Search Engine Roundtable that I could find on the matter. It is probably best that you expose the content and use scrolling techniques to allow the user to move to the content on the page than rely on hidden content techniques.

One quick test you could use is simply look for the exact text you use in the hidden section and see if you rank for it. If not, you might want to rethink your strategy.

The appropriate solution in this place would be to employ the hreflang tag to related the two geographically separate sites together. However, before you take that step, I would look to make sure the previous SEO company which created the .com did not point any harmful links at the .com domain which would make it inadvisable to connect the two sites together. Use OpenSiteExplorer to look at the backlink profile and use Google Webmaster Tools to authorize the .com site and look for any manual penalty notices. If all looks clear, go ahead forward with the implementation of the hreflang tag.

Good luck and feel free to ask more questions here!