URLOpener.COM: Open a Whole List Of URLs At The Same Time.
Disclaimer at the bottom of the page [in a smaller font]
Paste URLs into the field below and press Submit. Press Open All (which will appear) to pop up all the websites at once, or open each URL individually. We recommend setting your browser to open new windows in tabs. Note: Opening too many at once can slow your computer.
Link: URLOpener Productivity Tool- Open multiple websites at the same time
Disclaimer: You use URLOpener.com entirely at your own risk. Partially tested with Internet Explorer and Firefox.