The problem I have with this self directed kind of learning is that sooner or later I always get stuck and have no one to ask questions to. For example, I'm cu

The problem I have with this self directed kind of learning is that sooner or later I always get stuck and have no one to ask questions to. For example, I'm currently going through this book on neural networks that someone posted last week (http://page.mi.fu-berlin.de/rojas/neural/ http://page.mi.fu-berlin.de/rojas/neural/). However, when I get to the exercises at the end of the chapter, I inevitably fail to complete some of them. Most of the time I don't even want the answer, since that defeats the purpose, but some kind of hint to get me going in the right direction would be really useful. Anyone doing a lot of self directed learning from text books with suggestions?