EvilZone

Above you see some screenshots of my current project. It is a tool to analyze a jpg-image, so that you can see data that is hidden inside the code of the image and that you can analyze the code itself better so you can get a better insight into what the image is made of. The tool gathers also some basic metadata and it detects images hidden inside the main image.
I've written the tool in java and there is a official stable version currently out on my website.
This project is also a way for me to learn how to develop professionally, as I now use a proper version management system and external build tools. Also I try to concentrate in this project on a good programming style and try to plan further developments properly.
The current version of my tool only works with jpg-images, so I am working on a version which will also work with png-images and more image types will follow.

In my opinion it doesn't matter too much, they are very similar in their missions. I discovered HTS first, so I did the missions there first.

Here you have something about shsh blobs:
http://www.jailbreakqa.com/questions/32462/frequently-asked-questions#32763
Google is your friend

Theory of relativity by einstein:

http://www.fourmilab.ch/etexts/einstein/specrel/specrel.pdf

and

http://hermes.ffn.ub.es/luisnavarro/nuevo_maletin/Einstein_GRelativity_1916.pdf