I recommend you check out StevenBlack's Amalgamated hosts file: https://github.com/StevenBlack/hosts

  Currently the hosts files from the following locations are amalgamated:
    MVPs.org Hosts file at http://winhelp2002.mvps.org/hosts.htm, updated monthly, or thereabouts.
    Dan Pollock at http://someonewhocares.org/hosts/ updated regularly.
    Malware Domain List at http://www.malwaredomainlist.com/, updated regularly.
    Peter Lowe at http://pgl.yoyo.org/adservers/, updated regularly.
    hpHosts at http://hosts-file.net/, updated regularly
    My own small list in raw form here.