Where can I find an online forum for owners & managers of auto repair/service shops? Not that I'm interested in the minutia of replacing an oxygen sensor in a '93 Civic, but I would like to research and discuss such topics as: What's a decent, affordable tire mounting & balancing machine? What are the merits of a four post vs. two post hydraulic lift? What accounting software to use for part inventory control? Usenet, phpBB-ish forum, or searchable mailing lists are all fine, but my Google Fu is failing me in locating an actual forum or list.