Have you already heard about Curah!? It’s a web site where you can group, comment and share links to useful resources about a technical issues. Curations may be useful for their authors (so they can find related resources on a single place), but they will be especially helpful for those who are new to a particular topic.
If you want to know more, look at Curah! FAQ and, for something more AX-oriented, AX Content: Curating Microsoft Dynamics AX Resources.
It’s also helpful to see some examples. This is from Microsoft: Microsoft Dynamics AX: Companion apps. And this is my humble contribution so far: Microsoft Dynamics AX 2012: AIF and Web Services.