On a previous blog of mine, which I sold (naturally), I wrote about making money as an SFI affiliate.
You can think of SFI as the opposite of Amazon Associates. SFI has a small selection of products, and the focus is on building a team/referral network to sell those products for you.
SFI marketing group are about network marketing and they are borderline MLM (multi-level marketing), which is not something I am generally involved with. However, on this previous blog I wrote some pretty in depth reviews about SFI and decided they were legit, but that I wouldn’t promote them because they didn’t have many products available to for affiliates to sell, which put too much emphasis on growing a downline that had the main purpose of growing their own downline.
Nevertheless, the couple of posts I wrote became fairly popular and ended up giving me 74 referrals. As an experiment and in the quest for answers to readers of that blog and my newly acquired referrals I paid to upgrade to an “executive affiliate”, which promised bonsues beyond the cost of upgrade.
The result was earnings of $24, but I had paid $30 to stay upgraded for 1 month, so I had lost $6 and not been paid the $24. I wanted to focus on other things and so I didn’t bother upgrading again.
Months went by and a few of my referrals made sales (see screenshot below to see my earnings gradually increasing).

Without doing anything and forgetting about SFI completely, my earnings increased to $72, which to my surprise arrived in my PayPal account yesterday. (see screensshot below - click to enlarge, SFI is a division of Carson Services)

I re-investigated SFI and they have added lots of new products for their affiliates to sell and so the MLM aspect has been diluted. You can now sell a much wider range of products, from shampoo to tech services. Alternatively you could focus on growing a sales team to sell those products for you. I wont dive straight back into SFI, but I may get back togethor with them again in the future.
If you want to play the SFI game you are welcome to join my SFI as part of my network.