The Texas Library Association is assembling reports on libraries affected by Hurricane Ike and has put them online. You can donate to the Disaster Relief Fund.
The Society of Southwest Archivists has set up an unofficial Wiki so that repositories can report news on Hurricane Ike and how they fared. Since it is an unofficial site, anyone can add content, and many libraries are posting there as well.
Adapted from an email distributed by the Texas State Library and Archives Commission.