Telecomix and We Rebuild are probably the most active community in helping to restore access to the internet in countries faced with democratic uprisings.
Here is a video message to the people affected by internet shutdowns:
For updates on access in Egypt, see also here.
Their sites: telecomix.org, werebuild,eu, streisand.me, chat.telecomix.org, cryptoanarchy.org.
The text of the video:
Dear Peoples of the Middle East and North Africa.
This is Telecomix. We have a short message for you.
Recently there have been massive uprising in many countries, from Tunisia to Egypt.
We are very happy to see the success of your struggles for democracy and freedom.
We are also sad to see the violence that happens.
Telecomix works for defending free communications.
During the last week we have worked intensively with providing modem lines and amateur radio communications when the internet was shut down completely in Egypt.
We also provide methods for circumventing internet filtering, as well as the strongest cryptographic softwares available to modern computers, for avoiding government surveillance and repression.
Telecomix consists of hundreds, maybe thousands, of internet activists that work in the service of free communication. We use every communication technology that we master to try to keep the flow of information up.
You are free to request anything from us. We do our best.
We are from the internets.
We come in peace.
Let there be freedom for all people and computers.