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The ranking would depend on the overall content quality of the page. The text that is selected to be added on the page, describing the video should be original and relevant to the context you wish to optimize the page for.

I believe adding the video on YouTube or saving it on the website won't make any difference. We have a website as a collection of YouTube videos ranking on top spot for a significant number of keywords we are working on. Yes, having the word video in the URL and title can help as a plus in ranking factors.

The second option would  work best. The contents of the H1 and other heading tags, matter a lot when optimizing a page for specific keywords. The tag should not contain images and should appear before anything else on the page.

click to read full transcript, using CSS or JS would be better. So the content is shown once the user clicks the link.

If you are asking about hosting blogs on different C-Class IPs to help promote the main website; there are a lot of other complications involved. This method works to some extent, right now, but the domains should not be linked to each other; no common factors should appear. Like, domains must not be registered in the same name, the themes should be different, no common header, footer, widgets, no common ad-code etc.

Also, applications like Autoblog are of no use. All websites hosted on the IPs must have original content, and a good amount of backlinks to get the pages with backlinks indexed in the search engine. Also, the blogs shouldn't link back to a common set of websites. No use having 100s of pages on a single blog/site, every page linking back to your website; clearly shows you own the blog.

I am not sure if this answers your question. Just something I thought you are asking about.

A lot of people have shared concerns over Google checking the ownership information. Actually, the SERP quality team in Google is considered one of smartest people in Google itself. They work hard to keep people from trying to manipulate the rankings any way possible. The algorithms check every aspect possible. associated with the site to see if people are trying to create links to their own sites. The practice is actually considered similar to buying links on other blogs.

Google has never, and will not officially share the factors they use to check link quality. This is necessary to keep people to misusing the information; people will start playing better once the rules are written loud and clear. All the information out there is based on experience.

One example is, a recent change in Google Webmaster Tools interface. A lot of people started getting suggestions from Google to add sites to their Webmasters account. Google started suggesting that it feels you are the owner of the sites on the basis of ownership information and other common factors within the sites. Was a surprise for people who were trying to hide.

I don't think Google has access to private registrations as this would clearly violate the TOS for the hosting service provider. Private registrations are there for a reason. But a domain/website not revealing ownership information loose a little in domain authority.

Same here, I won't recommend using one's own blogs for backlinks. I was part of a team which used the service and likes to host over 400 blogs in an attempt to manipulate their ranks. This worked with great success until recently. The team has experienced a big drop in rankings after a full year of success. The value of the links has vanished. This I believe might also be a part of the recent Panda update. A lot of people in SEO industry believe the Panda update is not only about penalizing copied content, but about removing content which has little value.

A blog with a link in every post, pointing to another website, on a relevant keyword, is a clear indication that it has been made with an intention to manipulate the SERP ranks. This is categorized by a crawler as nothing more than a link directory. Links from domains with high traffic and original content have proved to be a good value, no matter what the anchor text is.

The blogs and target website have a big chance of getting removed from top 100 SERP results. We have seen this happening to a lot of websites recently.