Backlinks Theme, PR Statistics for linking sites

Backlinks Theme
To determine your site rankings, search engines take into consideration theme relevance of those sites linking to you. If the linking sites have something in common with yours (keywords in the BODY, titles, descriptions of the linked pages, etc.), your website gets better chances to gain high positions for these keywords.

PR Statistics for linking sites
PR Statistics for linking sites is statistic information about the Page Rank of the pages linking to you. Statistics are presented both in numerical and percentage terms. The higher the PR of the referring site, the better chances your own Web page has to get high PR.