I have a couple questions! Apologies if it seems like I'm looking a gift horse in the mouth here, but is there a base line for donations if we'd like more than one account on paid status? Also, do paid users receive any more invite codes than non? Thanks so much for your dedication to keeping the site running!

As for other ways to raise money, I know I personally wouldn't mind unobtrusive ads like Google Adsense. Giant banners--especially ones that talk--are a turn-off, but I'd hope most people would understand that some form of advertising can be a necessity.