There's no "best" day to send press releases but this has not stopped many online marketers from wondering if one day is better than another.

If you intend to use press releases as a means to improve search rankings (a respected tactic and one that I personally approve) then it should not matter when you distribute a press release. Search engines don't care if they find content on a Tuesday or a Saturday - the day makes no difference in actual value.

There are some things you should know, however, if your aim is to secure mainstream (or even alternative) media attention. My experience has been that there are dramatically fewer press releases sent on weekends and at the beginning (Mondays) and end (Fridays) of the work week. The prevailing "wisdom" used to be that you never sent a release at the start of the week - but since everyone seems to be following that rule, if you want your press release to stand out among the hoards, try sending it on days with the least activity. I'm in a unique position in that I review hundreds of releases a day. Case in point - today I scanned over 327 press releases in my PRWeb RSS folder alone. Had there been, say 127 instead, I may have paid more attention to a few of them.

The most important thing to understand if you're looking to secure genuine media attention through content distribution of a press release, is that any day of the business week can work. But it's crucial to leverage your media relationships and not rely purely on the distribution power of the news wire you are sending that content through.