What are some of the ways to increase my web ranking on Google search for free to improve my adsense earning? Thanks.
Backlinks, yes. But, quality links from related websites in your industry are better than random links from random sites. It's debatable whether Google prefers links from sites in the same industry or not. But, you will defintely get better quality traffic if you exchange links with sites within your own industry.
Why would related links be debatable? I was pretty sure google laid it out pretty clearly that related links means higher PR.
Hmmm yes, but imo it is quite tough to ascertain what each site is about, i.e: there are sites that don't really have a set topic. Ex: If you get a link from a huge site like Yahoo.com, I am sure your PR and rankings will skyrocket eventually. And, I don't think it will depend on whether the page you got a link from was related to your site's content or not. Moreover, it's quite tough to say what topic some sites are about. Like, is Yahoo a search engine, or a shopping portal or an email provider, news BBS??? This is just my take on it. But, as I said earlier if I have an option of getting a link from a Tourism or Travel site for my sites I would prefer that over an unrelated site purely because of the fact that I will get much better quality traffic from related sites.
Yes, but it's also easy enough to build an algorithm to see if sites build some sort of neighborhood (based on links or keywords). I also think it's pretty easy to see what a site is all about. Just do a quick word count. Targeted traffic is always best. If you have a tourism site linking to a site that sells airline tickets, then you're better off than a site that talks about computers linking to the same hypothetical airline ticket seller.
Yes and no. You will get a higher rank, the more links you have, but only if they're good links. The better the page is (higher the page rank), the better it is if they link to you. So, 1 PR 7 page linking to your site is a whole lot better than a dozen PR 1 sites linking to you.
Be careful from websites with PR 0. They may got a ban from Google so before exchange links with PR0 websites, check why they have PR0. The most common reason is new website (like 2 of my websites).