Thanks to everyone who attended my SSRS class in Charlotte this week. As promised, here is a list of online resources that may prove useful to you as you work with Reporting Services.
Additionally, the following links, though not wholly dedicated to Reporting Services, frequently have good Reporting Services articles and content.
And finally, the following book has been well received by its readers according to Amazon.
This list is far from comprehensive. So if you have some links that you've found worthwhile, please share them in the comments below.