This week's book giveaways are in the Refactoring and Agile forums. We're giving away four copies each of Re-engineering Legacy Software and Docker in Action and have the authors on-line! See this thread and this one for details.
If the goal is to pass parameters via a link there aren't too many options: put them in the URL, have them already in session, or possibly use Ajax depending on your requirements. If you use Ajax they'll still be visible if the user is using a proxy, Firebug, etc.