Missoula.WS isn't the only game in town. A number of organizations make web directories for Missoula and Western, Montana. Here is a list of the different directories I've found. So, if you can't find your Missoula information here; well, you might try one of these services.
Missoula, Montana (www.montana.com) Montana.com has links and does web site design for the entire state. Here is the link to the Missoula section.
Missoula Business List (www.missoulabusinesslist.com) Missoula Business List is a business directory for the Garden City.