I am rather curious about how the sponsorship goes, I don't wanna know your exact figures of coarse but I am curious how the process goes/ how long it takes/ how it is dealing with the sponsor? Good luck!
Usually, people use FGL (fgl.com), and it usually stays there for nearly a month before you choose a bid. The way it works on FGL is that some staff members review your game, and give you a score based on 5 categories- Fun, Graphics, Sound, Intuitiveness and Quality. They also give you a score for each of those categories. After the initial review, you get a chance to improve your game based on the comments the reviewer makes, and then he does a re-review. Then, your game is up for sponsorship, and sponsors can see your game and bid on it. After you find a bid that you're satisfied with, you can choose it, and then you and that sponsor do what you have to do for that sponsorship (You put in the preloader, or whatever they want you to put in there, they pay the money), and then the game goes viral. Well, that's if it's the most common sponsorship type, Primary- the other one is Exclusive. Exclusive means that it can only be on their site, I think (I also heard elsewhere that it means no sitelocks, but AFAIK it's just their site), while primary means you can sell sitelocks to others but the viral version has the main sponsor's branding. The viral version is the version that goes to 100s of websites, and the sitelock version is one that you give to a sponsor with their branding but can only be on their site.
Different sponsors act differently. There's a forum on FGL which talks about the good and bad sponsors, and most seem like nice people, but some take a long time to reply emails, decide not to sponsor your game after you've already accepted the bid, etc.
How much a game sells for depends on quality, luck and reputation (Mostly quality). If it's a bad game, it'll probably get a very small sponsorship or no bids at all, but good games often go for 4 digits. The average for good games (rated 7) on FGL in 2009 was $1,000, and the ones that were rated 8 got an average of 2,000. This is higher than in 2008, so you could say it's likely the number went higher, but many say that flash sponsorships are getting worse, so as there's no current numbers it's hard to tell. Here is a link for some 2009 statistics:
https://www.flashgamelicense.com/blog/2010/01/looking-back-at-2009-trends-and-statistics/There you can also see that the mean of accepted bids in 2009 was $1500.
I should also note that while it's on FGL, if you make it available to developers (which you should, if you put a game on FGL), you will also get feedback from fellow game devs.
