Here's one such software package: http://www.nobletrading.com/real-time-stock-quotes.php . Note that there are some stand-alone web services that do this without having to install anything.
There are a number of sites that offer streaming stock quotes. http://www.realtimestockquote.com/streamingportfolio.asp is one site that offers them, but there are others out there.
Smart Money has an award-winning software that provides very quick updates, and itunes currently offers a real-time stock app, which would have up-to-the-minute quotes.
A stock watch is used for streaming realtime quotes. It provides complete views of your livestock quotes, market depths and full charting capabilities.
Stock Quote 1.2.4 and AlphaTicker 1.3.4. They are both currently available from firefox.
http://www.semmo.net/streaming-real-time-quotes-level2-ecn-arca-bats-inet.html
Most of the financial networks offer streaming market data. CNBC operates cnbc.com and you will find streaming market rates at thier website.
Stock quotes in Canada can be found on Google Finance or Yahoo! Finance. The website TMX also offers stock quotes in Canada. TMX also has a Facebook and Twitter page.
Apple includes a stock price app with it's phone. You can also purchase paid apps that do the same thing.
"Many companies offer C Stock quotes. You should check out MSN Money, DailyFinance, CNN Money, or Reuters. You can also find quotes on several television channels."
Computerworld advertises for this software product. Options Express is a leading retailer. Merrill Lynch offers software to help with stock trading as does Schwaab.
CNN Stock Market operates every day of the week. CNN Stock Market offers information on the latest news and trends on the stock market with stock quotes.
Market Watch offers real-time quotes for Bank of America stock trading. They also include news for the Bank of America Corporation (BAC) on their website.