During the Office Developer Conference 2008 I have attended a great presentation on high performance SharePoint 2007 solutions by Andrew Connell. And although I've heard a few times before that if you care for performance of your solution, and obviously you should if you're responsible for delivering Internet-facing Publishing Sites in SharePoint 2007, it became clear to me once again: one of the best aggregation solutions out there you should use is the Content Query Web Part... or isn't it?
While running through the decks from presentations I have attended at Office Developer Conference I have stopped for a moment on the session given by Andrew Connell on Building High Performance Solutions on Microsoft Office Server 2007. During this session Andrew has presented quite a few methods on optimizing the overall performance of a web site built upon MOSS.
Recently two great articles on dealing with SharePoint 2007 disposable objects have been published. The first one called Dealing with Memory Pressure problems in MOSS/WSS by Stefan Goßner presents the memory issues in general together with a few solutions on how to deal with them.