The following is a combo list. This can be found almost anywhere.
This is a reverse combo list. I created this using the data from above. It is used to find all combos a shop or building belong to. Very useful if you like the game.
Reverse Combo List
This is combo that links a lot of shops and buildings. It is attributed to macboney and was found here.
Finally, this was also used as a way to investigate how Google document spreadsheets are embedded in web pages. It's pretty simple. The code is created for you by publishing it. Just cut and paste. It looks like the following:
<iframe frameborder="0" height="300" src="https://docs.google.com/spreadsheet/pub?key=0Ak1itrncGIGldHlqR24yd0syZ3dQQWV0R01TTmxaQkE&single=true&gid=0&output=html&widget=true" width="500"></iframe>