It looks like we have a new method of requesting ALR hearings to contest license suspensions in Texas. The Department of Public Safety has added this link to their page that allows you to request a hearing online.
The Notice of Suspension handed to anyone arrested on a DWI does not mention a hearing can be requested online so I wouldn't rely solely on the internet to make a request. I would also be leery of "bugs in the aether" that could intercept the request.
As I already send my requests by fax and certified mail, maybe I'll just save the postage and send my requests by fax and through the DPS website from now on.