What are some alternatives?
When comparing Infinity Free and Rackspace, you can also consider the following products
000webhost - Zero cost website hosting with PHP, MySQL, Cpanel & no ads!
DigitalOcean - Simplifying cloud hosting. Deploy an SSD cloud server in 55 seconds.
HelioHost - Community powered free hosting for everyone.
AWS - Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services. Free to join, pay only for what you use.
ProFreeHost - ProFreeHost is the provider of free and unlimited web hosting along with additional tools and services in the shape of PHP, FTP, cPanel, MySQL, unlimited disk space, unlimited websites hosting, unlimited domains, unlimited bandwidth and much more.
Webbera - If you are looking for free web hosting services along with additional services and tools like disk space, bandwidth per month, website builder, availability of MySQL and PHP and much more than you are on right platform.