Egyptians have been voting in a referendum to change the constitution. Here are some recommended sites for geting the facts.
IFES has some basic details about the system and previous Egyptian referendums.
the Egyptian government website has recent notices and reports.
Some good basic guides to the content of the new constitution can be found in
Atlantic Council website which has an excellent section called Egypt Source which has news and analysis on the politics of the region.
al Ahrams guide.
For more detailed analysis cross comparing with earlier constitutions see the Comparative Constitutions Project. which looks at 1971, 2012 and 2013.
The EU has some observations from its observer mision
Background information plus news coverage can be read on the websites of these leading think tanks
Council on Foreign Relations.
Useful blogs covering events are
Egyptian streets blog.
aswatmasriya.com has a useful collection of news stories plus links to postings from the region.