Keywords are search requests to search engines that people use to find some information. Keywords on a web page reflect what the page is about. Below are the keywords the site. Green line represents the frequency of keyword usage on the site.
Homepage links
Internal - 117
External - 7
Internal links from the site's home page define the general site's sections and serves as one of the most important factors of site ranking. External links tie the site with other sites and determines the site's theme. Relation of external links to internal links influences the distribution of the site's rank for search engines. It's desirable that the amount of internal links prevail.
Content pages from the website
1. Science Photo Library
The leading provider of science and specialist images and footage.
Happy anniversary Charles Robert Darwin. This year, 2009, celebrates 200 years since his birth and 150 years since he published his revolutionary book: On the Origin of ...
Correlated to State Standards! Use the detailed and engaging photographs to introduce and reinforce science concepts, and enhance students’ vocabulary development.