Where to submit press releases

Part of a good small business marketing strategy is submitting press releases every now and then. Ideally every month.
Press releases should be around a good story and to the point. Press releases are not only good to get attention from the press but by submitting to press releases sites you also get links back to your site.
Here is a list of places where you can submit your press release for free.

1888PressRelease.com
24-7 Press Release
AddPR.com
BizEurope.com
eCommWire.com
Express-Press-Release.com
Free-News-Release.com
Free-Press-Release.com
Free-Press-Release-Center.info
FreePressIndex.com
FreePressRelease.co.cc
FreePressReleases.co.uk
i-Newswire.com
IndiaPRWire.com
MediaSyndicate.com
MyFreePR.com
NewswireToday.com
PageRelease.com
PR.com
PR9.net
PR-Inside.com
PRCompass.com
PRlog.com
PRurgent.com
PRzoom.com
PressAbout.com
PressBox.co.uk
PressFlow.co.uk
PressMethod.com
PressRelease.com
PressReleasePoint.com
TechPRSpider.com
TheOpenPress.com