AppSumo entices you to share with more entries
Of course as an avid user of Dropbox this competition excited me and I entered instantly, however, it was what happened after my entry that interested me.
On the 'Good luck' screen I was asked to share the competition with my friends, which ordinarily I wouldn't do as there isn't anything in it for me. This time though, AppSumo told me that for every friend who entered (after following my link) would gain me an extra entry into the competition.
If you want people to share content for you, you should think about offering people incentives such as this one, which should improve the chances of them doing so.
Where else have you seen examples like this? I'd be keen to see some more.
