This video is pretty interesting. It's basically a tutorial for an open source file recovery program. It's creepy in the sense that I just found a picture I deleted 5 months ago. haha 
Photorec Tutorial Video
Heres a step by step guide for those who can't get the video to load or just don't feel like watching it. Also, this guide is for Windows Users.
My tutorials can be read two ways. If you're a beginner, read each
step as your normally would. If you're advanced read only the indented
lines.
1. Download Photorec from this link:
http://www.cgsecurity.org/testdisk-6.6.win.zip
2. Right-Click the download and extract to your desktop.
3. Navigate to:
C:\Documents and Settings\USER\Desktop\testdisk-6.6.win\testdisk-6.6\win
USER is a placeholder for your user name.
4. Double-click:
photorec_win.exe
5. Using the up and down arrow keys, select the hard drive you wish to restore. Press:
Enter twice
6. To change the file types that are searched for, press:
Right arrow twice and then Enter
7. Change these to your liking by pressing right or left arrow. When you are done, press:
Enter
8. Press:
Left arrow twice
Choose your partition, most likely NTFS,.
9. Choose your filesystem. Again, most likely NTFS.
10. Press:
Y
Now, you can either stop the recovery midway or let it run completely. The recovered files will be in:
C:\Documents and Settings\USER\Desktop\testdisk-6.6.win\testdisk-6.6\win\recup_dir.1