I know just these companies:
ASPSpider - Free hosting. Support ASP.NET 4.0,SQL Server 2008 Express. This is a free offer from a group .NET programmers to support the developer community.
Host-Ed - Free hosting. Support ASP.NET(MONO version), PHP, Ruby, Perl, CGI, SSI, MySQL, Postrgress DB. 10 GB disk space, 100 GB traffic.
jabry.net - Free hosting. Up to 1GB of discolo space. Advertisement no. Unlimited traffic. Support for Active Server Pages (ASP), FTP, MS Access databases. Promise high speed.
0000free.com - Free hosting. 1GB of discolo space, 10 GB of traffic. Advertisement no. Support ASP.NET, PHP, Perl/CGI, MS Access databases. Promise high speed.
somee.com - Free hosting. 150 MB discolo space, 5 GB of traffic. Advertisement no. Support ASP.NET, PHP, Perl/CGI, MS SQL database size up to 15 MB. Promise high speed.
Brinkster.com - Free hosting for students. Give the domain http://UserName.brinkster.net, 30 MB for the site / 2 GB traffic, ASP 3.0 / ASP .NET database MS Access. Don't hang your advertising. On the day the flow of traffic not more than 16.7 MB. Files no larger than 1 MB. Audio and video files is prohibited. The site is in English.