Try sharing little blurbs here and there with your new PSAs. Information overload can cause new affiliates to crash and burn mentally and give up on SFI entirely.
Put together a small, albeit informative newsletter to pique their interests, too. Don't make it too wordy; most people have an "off" switch in their brain that they flip reading a bunch of jargon and legalese.
These might be some good ways for your new PSAs to keep abreast of the goings-on at SFI.