First, some house cleaning: I prepared your affiliate commissions and if you earned at least $25 this month, you should get your checks within a couple of weeks.
I was looking at our sales reports for May and noticed a sudden increase in engineering resume writing sales, which are still going strong so far this month. I would recommend to all engineering sites out there to promote our engineering resume service, which should bring in high commissions - engineering resume links are available in your affiliate program account.
Also, whether you have an engineering site or not, June seems to be a great month for affiliates, as Earning Per Click conversion ratios are currently ranging from $2.12 to $3.02 per click for most active affiliates. Pretty high isn't it? What's great is that these EPC's can be attained by pretty much anybody with a nice content site as these high-earners are all over the spectrum, whether it's in terms of traffic size (big and small) or theme (some are general sites and others are niche sites).