Yes Jitney is a term used in the trading world, but in this case it is a firm: http://www.jitneytrade.com/2008/home.asp
Jitney actually operates a good platform for Canadian traders. They are providing liquidity and definitely helping put GNH on the map as it is consistently on the TSX-V volume leader board: http://ca.finance.yahoo.com/actives?e=V
If you are watching the time and sales, take a look at what is going on with the Alpha trades: http://www.alphatradingsystems.ca/ALPHAMARKET/MarketActivity/SymbolLookupResults/tabid/97/Default.aspx?pid=92&symbol=gnh
If you want the consolidated volume for the day, the best spot to hit is Bloomberg at http://www.bloomberg.com/apps/quote?ticker=GNH:CN or get the Bloomberg app for your iPhone or BlackBerry.