The following tutorials are created by Prateek Gianchandani who has interests in the field of Penetration Testing, Web Application Security and Intrusion Detection. He is currently a researcher for InfoSec Institute. In the past he has worked for security-based startups. In his pastime he maintains his website searching-eye.com.
Burp Suite Walkthrough
Inserting Vulnerabilities in Web Applications
Hacking Web Authentication – Part 1
Hacking Web Authentication – Part 2
W3af walkthrough and tutorial – Part 1
w3af walkthrough and tutorial part 2 – Discovery and Audit plugins
w3af walkthrough and tutorial part 3 – Remaining plugins
w3af walkthrough and tutorial part 4 – w3af tools, profiles and scripting
That's all! See you.