http://www.inulledmyself.com/2015/02/exploiting-memory-corruption-bugs-in.html
http://www.inulledmyself.com/2015/02/exploiting-memory-corruption-bugs-in_23.html
http://www.inulledmyself.com/2015/05/exploiting-memory-corruption-bugs-in.html
An excellent series of three blog posts on the said topic.
http://www.acunetix.com/websitesecurity/upload-forms-threat/
A good article about the danger of providing a file upload functionality in a web application, and how some of the security mechanisms (such as MIME-type and extension filtering) can actually be bypassed.
http://www.troyhunt.com/2013/07/everything-you-wanted-to-know-about-sql.html
This is not an in-depth instruction manual on SQL injection, nor an introduction of cutting edge exploitation techniques. Nevertheless, it is a very good primer on the concepts and basics of SQL injection.
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