By many accounts, today, February 1st, as protesters intend a ‘march of a million’ from Tahrir square to the presidential palace, will likely be Mubarak’s last as president. Here are some things you should read up on to be informed as events unfold:

Politico’s Mike Allen has a wonderful account of the administration’s developing responses to the crisis in Egypt. One Obama aide calls it the “classic dilemma for America.”

Ben Smith describes Americans’ concerns over the Muslim Brotherhood.

The NYT profiles Omar Suleiman, the new Egyptian veep.

Arab elites at Davos predict regime change.

Others predict an end result that will be to Islamists’ liking.

A young photographer captures Egypt’s byways.

The NYT shows a class divide, and rioting in Cairo.

Fareed Zakaria interviews ElBaredei.

…as the U.S. scrambles to size up this possible successor.

Watch Al Jazeera’s streaming online coverage, and follow my updates on Twitter, and here at Developing. Cairo is 7 hours ahead of EST. So events will likely pick up around 2 am EST.