Rackspace, is once again ranked as the most reliable hosting company site this month, followed by OLM and INetU. Rackspace was also the top performer in February. This month's top 10 includes five sites running on Linux, two on Windows 2000, one on Windows Server 2003 and two on FreeBSD.

This marks the seventh consecutive month in the top 10 for INetU, a managed hosting provider in Allentown, Pa. Since the start of 2004, INetU has been among the reliability leaders for 14 out of 16 months. Other consistent top 10 performers in recent months include Datapipe (eight of the last 10 months) and New York Internet (five of the last seven months).