The Google Fresh Liner
One thing about Google Search is that although its totally amazing as a search, its results are, by default, a tad on the musty side.
You want to know about the latest research in transfinite anti-calculus. You do the search.... bugger... your getting all those old papers from 2006; which we all know are now just considered "folklore" nowadays.
You can go into the advance search.... but who wants to do that. Don't we have lives!
Try this tip I just came up with...
In Firefox (If you don't use Firefox, get off my blog!) go to "Organize bookmarks" right click on Google quick search>properties and replace this:
http://www.google.com/search?q=%s
with this:
http://www.google.com/search?as_q=%s&as_qdr=m3
If it isn't there all ready I would change the keyword to just g.
So now when you enter in the Firefox address bar:
g world overpopulation issues
You get only all pages updated in the last 3 months about world overpopulation issues. Plus the Google search will now show the date drop down so you can change the search date range yourself.
Nifty!