I really like Dino Esposito's writing style...anyway, he's come up with a brilliant article on the most efficient ways to use Session state from ASP.NET - this is just about the best examination of the subject that I've seen and is now one of my 'must reads' for any developer starting out with ASP.NET...
Anyone found a really good article on ASP.NET page lifecycle events yet...I've yet to track one down - and I do think that is the number one most important thing for developers to get a grip of when writing ASP.NET applications - it can really bite you in the ass if you get it wrong!
Dino also wrote this one which is pretty good at covering the basics of the lifecycle and is certainly a good primer...I don't know what I want to read, just more detail, maybe examples of what can go wrong, when things are available in the lifecycle etc...tricky one...that's why I'm a crap writer I guess..but I knows what I likes :-)