crackmes.de has a pretty nice selection of crackmes. As of this writing, there are 479 (1 - Very easy, for newbies) crackmes. You can find them through the advanced search section. Choose difficulty level of one. Starting out, most of my notes will be for this website. Eventually, I will venture out to other sites looking for crackmes.
The following notes will be ordered in the order in which I posted them.