This metric shows you how often a keyword appears on a page.
This is a normal HTML link without any special coding or and pictures involved.
Text Link Ad
Text links which are transformed into ads.
Many search companies have toolbars, which includes pop-up blockers, spellcheckers and autofill. However, more importantly it helps search engines track relevant usage data.
You are automatically notified if a website mentions your site on another website. Many blogging software programs have this notification system installed.
This metric takes the trustworthy of a website you are linking from into account.