Freeware application that lets you manage your Hosts file with ease. Features include online update of hosts file, enable/disable usage of hosts file, open Hosts file with one click, merge two hosts files, built-in hosts editor and more.

Features:

online update of hosts file;
enable/disable usage of hosts file;
open Hosts file with one click;
merge two hosts files;
built-in hosts editor;
prevent other programs of writing to the hosts;
scan hosts for errors, duplicates and possible hijacks;
find how many host names;
easily install newly downloaded hosts file;
create encrypted backups of your hosts file;
resolve host names;
keep log of latest blocked sites;
etc.

Limitations: Free for non-commercial use only