Only had phone calls from 2 sponsors, 1 was a generic 'this is rep g from company d why don't you try to promote this brand new site blah blah blah' the other is the owner of a ccbill paysite, who I do sell well with, letting me know about some changes in his program, addition of FHGs, and the chance to use them a week before they were announced online.
Which was nice

So, I voted it's ok if it's a sponsor I send a lot of traffic to.