MPC has certainly been on an impressive roll! FYI, anyone who wants to test such games safely and keep all files and system changes contained should use Sandboxie. It's a brilliant and trustworthy free utility that is very light-impact all on it's own and which allows you to instantly delete an install without it ever having impacted your system, it can even let you deny sandboxed programs access to the internet. To use it you just right-click a file and "run sandboxed" (and quite frankly a web browser should almost never be run outside of the protection of Sandboxie). Also, for power users: to ease the installation and archiving of most games I'd suggest opening the setup files with this.
Dragonlair, this is just a random idea but depending on your software you could save bits of your spreadsheet as a webpage/html and then upload it. It should retain the formatting and offer the organized list you were wanting to share. I wouldn't advise uploading a spreadsheet directly as it could contain metadata you wouldn't want shared (search spreadsheet metadata for info), and as far as that goes you could load the html in a text editor to check it's contents. Alternately, you could stitch together some screenshots of the sheet to create a graphical map of sorts. Two quite decent sites that will accept .htm uploads: link and link
I don't track those game sites like you do but I do sift through them in my own way. If you'll pardon the digression, I like to create simple, custom made web pages as a starting point for my browser on my own pc (writing basic html is easy), this is what my free games page looks like:

(click)
At the upper left I have links to the game sites I check most often, each designed to open in a new tab, while further down the page (unseen) are links for other freebies and deals and whatever. At the upper right I have search forms I've extracted from various sites for the sake of quickly searching out reviews, with the results opening in a new tab. The first three should be pretty obvious but the fourth one (G) is customized to insert the word "review" automatically when you search. The fifth one searches "G" images, it automatically includes the word "screenshot", sets the minimum size to 640x480 and also enables "safe search" (the strongest content filter). All of this makes it easier to decide if a game is of interest.
The middle of the page is a "textarea" that's like a form on a web page. I can type in it temporarily but if I do a hard refresh or close the browser the text will be lost. However, it's real purpose is to provide a permanent scratch pad that I can keep my download to-do list on. To edit it for real I view source in my browser to open it in a text editor. The textarea portion of the source code is a "blank" section in plain text (just as you see it), requiring no html tags or anything, thus very easy to edit and update while at the same time being on permanent display within the page.
The page is small and plain because that's how I like it, but it could be as fancy as you like and all of the elements can easily be moved, resized and endlessly customized. It's all plain html as well, no javascript or anything. If anyone would like to have it or something like it that can be customized then I could upload it and/or create a new topic for the sake of working something out.