Use the Free Yahoo & Google Quotes Downloader (YGQD) to acquire free historical End of Day quotes from Yahoo Finance, Google Finance and soon other sites

Here are some of the YGQD features (click here for the complete documentation)

* multiple simultaneous connections for fast download
* get data for any number of symbols and any period of time (if available on the Yahoo or Google servers)
* get complete data or update the most recent bars,
* optional split and dividend data adjustment,
* daily, weekly, monthly bar durations,
* data validation,
* configurable output data format
* data file name customization (prepend or append string, extension)
* command line options for automated downloading of up to date Nasdaq, NYSE and AMEX stock symbols and for handling of multiple symbols lists
* session events logging.
* rich set of APIs for setting various options and controlling its behavior from other programs
* extensible using the new data source plug-in API

YGQD is free, but donations to support it will be appreciated. Click below if you wish to make a donation.
data validation,
configurable output data format
data file name customization (prepend or append string, extension)
command line options for automated downloading of up to date Nasdaq, NYSE and AMEX stock symbols and for handling of multiple symbols lists
session events logging.
rich set of APIs for setting various options and controlling its behavior from other programs
YGQD is free, but donations in its support will be appreciated. Click here if you wish to make a donation.

Feel free to add a link to to YGQD on your site, or to mention it in your blogs, forum posts etc.