According to Timothy Gowers:
“After a very good start, the rate of signatures to the open access petition at the White House has slowed down to the point where, unless it speeds up again, the target of 25,000 will not obviously be reached, and ceratinly not surpassed by miles — which was the hope. There have been just over 100 signatures since the beginning of today (which, by my calculations, means eight hours ago in Washington DC). If you haven’t signed, then, unless you disagree with the petition, please take the short time needed to do so. And if you have, how about spreading the word?”

According to Terence Tao:
“More signatories already than the Elsevier boycott, but still only about 75% of the minimum target (with 20 days remaining).”

Sign the petition here.