What is the best way to retrieve real time stock quotes aside from Yahoo Finance?

I'm trying to test out some of my personal algorithms that requires keeping constant contact with the real time stock quotes, but Yahoo Finance (which I'm using now) will occasionally crash and is delayed/have data that are a bit off. I need precision and speed.
Answer:

The spreadsheet at http://investexcel.net/218/importing-historical-stock-prices-from-yahoo-into-excel/ may help, but you're probably face some of the same issues you already face

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Other answers

I find google finance...

Adam Paul

On iOS, Stock TickerPicker (http://bit.ly/RuFDq0) provides an optional subscription to the BATS exchange for realtime charts.

Matthew Formica

Try Xignite's APIs. They have tons of legit ways to pull quotes (subscription required).

Stephane Dubois

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