Okay, this is how I got all the cartoons. Firstly, these episodes were recorded from
live TV at the time of airing, for that reason some of the older series are lower quality
in viewing, but you'll just have to deal with that one.

1: You must have a high speed connection. These series take somewhere from 8 to 16 GBs.
2: You will need to download a torrent opener, I use BitLord.
3: You will need to next download the torrent files found below (they are less than 1mb) and open in BitLord
4: YOU NEED TO REGISTER AT www.soniconthenet.org! If you do not, you will not be able to start the download.
5: YOU MUST BE LOGGED INTO www.soniconthenet.org OR IT WON'T START DOWNLOADING!! (this is due
to the server that validates the download looks for an active logged in status on the forums).

Soniconthenet.org is the site where I got all of these files.
It has been the leading place to download all things Sonic. THANK YOU!!!

Also, one last thing.  When you download these, for those who have free hard drive space,
PLEASE pick at least one sonic series to keep on the computer, in the same place you downloaded
it without changing the file names, and keep BitLord running. This will allows others to download
the cartoons from you, as the point of file sharing.  This will not only help others get it, but
soniconthenet.org will be happy with you, and if everyone does this the download speed of the
cartoons can be as fast as 200kb/sec, which is super fast.  Help out!!

***Ask your parent's permission before downloading***

Adventures of Sonic the Hedgehog     Sonic SatAM     Sonic Underground     Sonic X

Also, here is a torrent of all the Sonic Comic books (minus the most current ones, of course)
You will need a program to view the files, here is the one I use, it's free.

Sonic Archie Comics