UnixGuru Hosting have switched their Shared and Reseller hosting servers to LiteSpeed.
Known for their home grown NGINX/Varnish/Apache, they've switched to LiteSpeed as the shared hosting environment is difficult to perfectly tune varnish for.
LiteSpeed has seen the setup of their new high powered servers:-
16 x 3.8 GHz CPUs
128GB of RAM
RAID 10 SSD Databases
RAID 10 SATA Data Disks
With its LiteMage cache for Magento and UnixGuru's Wordpress and Magento Specialities, LiteSpeed just made sense.
However, NGINX/Varnish/Apache is still used on customer VPSs as customers don't normally want the extra monthly expense of an Enterprise webserver license.