Backlinks，Obviously, means that links point to your website from others websites. Is just the opposite to the outbound links. Backlinks is one important factor that search engines, especially,
google, measure the popularity of a website. Increase incoming links, we can consider
FriendlyLink: interconnected with related sites are. Add the site categories, such as: DMOZ-open articles authoritative, other sites will be referenced and linked.
Back Links is also a advertising service providers that rely on trade of links and transfer PageRank to make money. BackLinks is similar to the platform of trading website link of Text-Link-Ads and it works also similar to TLA.