I've been away from a computer for a long time now (or at least one with unrestricted use) so I haven't had the time to finish the badge guide. The Gold badges are complete but currently in written form (ie, not typed) so I can't add them just yet. Once I return to college in late August, or possibly sooner, those will be added shortly thereafter. Platinum and Diamond will get added over time, and I'd wager the whole thing would be in its initially completed form somewhere in mid-September. I apologize that I haven't been around to update the guide, but I just haven't had the ability to do so. Thanks to everyone for the patience.
In the meantime, I won't mind looking through to check for others' own comments/mini-guides toward particular badges, so (as usual) feel free to reply here and address anything you think should be added to the guide. I'll get to the posts and happily add anything that is reasonably useful. (Don't send PMs unless you think there are heavy spoilers in your comments. Naturally, the guide itself is one giant spoiler.)