This week's giveaways are in the MongoDB and Jobs Discussion forums. We're giving away four copies of Mongo DB Applied Patterns and 4 resume reviews from Five Year Itch and have the authors/reps on-line! See this thread and this one for details.
Probably a beginners question this one, but I'm not sure about the answer even after reading the the mails about it in this forum.
When we are using HTTP-sessions is a servlet application, it is most of the time doen by using cookies, or by URL-rewriting.