phpSERA - Search Engine Ranking Analyzer
phpSERA is a PHP/MySQL-based tool for Search Engine Ranking Analysis (SERA). The rankings are based on parsing output of search engines, using simple regular expressions.
Given one or more search engines, one or more keyphrases and a single URL to look for, phpSERA connects to the search engine(s), parses the result pages and displays a ranking report. Parsing is done by stripping the header and footer of result pages using quick'n'dirty regular expressions (frequently updated and available from this website). Finally, the result list is split using some separator and phpSERA returns your ranking(s). Uses ADODB, so it should support MySQL, PostgreSQL, MSAccess, etc (I only tested MySQL).