keyword search volumn and google pagerank

Question

how do I find a keyword's search volume/popularity? how do I find a site's pagerank? Is google API one way to do it? are there other ways?

Answer 1

For checking a search term's popularity (relatively), you can use Google Trends:

http://www.google.com/trends

For checking a site's page rank, there's this site:

http://www.prchecker.info/check_page_rank.php

Answer 2

To get searches: https://adwords.google.com/select/KeywordToolExternal

to get pagerank, install the google toolbar ore use googles API for which you need a key