The Rule 40 blackout period begins July 27th and runs through August 24. In that time, non-Olympic sponsors and their athletes and coaches may not speak about each other in any form--that means no retweets, no mentions, no nothing.
Oiselle founder and CEO Sally Bergeson wrote a great post explaining the rules, regulations and messiness that are Rule 40.
On the eve of the blackout, check out what some of the world's best track and field athletes, coaches and non-Olympic sponsors had to say in their final hoorahs to those who shall remain nameless until August 24.