I have gotten one so far from Williams (Windows on Williams), Pomona (Perspectives on Pomona), and Swarthmore (this one said I had been nominated).
Some were sent to the email I have registered to the College Board and ACT, but others were sent to my school email that I have not registered with anything other than Naviance.
Does this improve my chances or mean they are interested in me? I am trying not to get my hopes up because I got similar outreach from Questbridge but that did not end up working out. But if anyone knows what this means or has any experience with fly-in programs I would really appreciate it