When I first experimented with adBrite I opted to check "yes" to "Are you already using other ad networks?" under Pricing Options and placed my AdSense code in the textarea. After putting the adBrite code into my site, I noticed an increase in my overall AdSense eCPM and have since kept it that way. Upon reading further about how adBrite works, it's my understanding that it "auctions" ads off in Real Time and places an ad that will earn you the most. Even though adBrite doesn't earn much for me, is my thinking correct that this enhances my AdSense eCPM? It seems to work but is this the reality or just a coincidence?