There are several possibilities of reading data of websides (eg. php-script). The possibility of user-interaction (automatic button click) appeared as an important factor for the judging of the tools. By means of the modul Selenium IDE (a Modzilla-Firefox-Add-on) it is possible to demonstrate interactions and show them automatically afterwards.
The read data is stored in a MySQL-database in a structured way.
The decision was assisted by because the functionalities from Java could be requested; this know-how is available in the company.
Link: http://seleniumhq.org