Facebook keeps changing its layout, looks, etc ever so slightly and so constantly that most users do not even notice the changes … until it hits them smack on the head. That’s what I like about these FB Apps, revisit the games after 3 months, and the game has also evolved … it has got more items, more plots … somehow it has become more interesting.

That’s why when I started playing Hero World, I couldnt help but notice that instead of having micro transactions through pay-pal or some such payment gateway, the game also had Facebook credits as a currency source. On further digging, I found that Facebook is offering users to buy Facebook Credits. Users can then exchange these credits with different applications.

Instead of carrying out micro transactions within games, now we can carry them through Facebook itself. Good to see a definitive revenue stream other than eyeballs and ads.