denisr400 -
It's really different for each school. Some have great recruiting resources and send continuous material; others will drop off during the season. The important thing is to keep up YOUR contact with the schools you are interested in. Don't wait for them to contact you and don't just look at 1 or 2 schools. It's still too early to narrow your interests to just a few. Right now you should be going on unofficial visits. See the section on juniors in the
Recruiting Timeline As for your question "Are these the ones you may receive an offer from?" Absolutely not. From the information we have received, there really is no correlation between the amount of mail you may receive from a school before July 1st and the schools who will actually make scholarship offers. Schools you hear from now may never call and ones that you have not heard from may surprise you. Here's a good article by Bob about recruiting:
Recruiting Reality