As I've mentioned before, I recently wrote a series of Twitter scripts (such as this Scala Twitter client example), and the most recent version of these scripts sends me an email with the current Twitter trends. If you didn't know it, there can be a significant difference between various "Twitter trends", including these:
Without any further introduction, when I got my email on the morning of May 8, 2012, here's what these three trends looked like:
--- DAILY TRENDS --- If I Had a Gun #WordsINeverWantToHear #askkris Miley & Justin #What2ChainzWouldSay #CosasBuenasEnElMundo James McCarthy Happy Teacher Appreciation Week #GreatestSongIntrosEver Julia Orayen Bankia Bee Movie Over the Hedge Cole Hamels #1MonthWithEXO Quadri Rodrigo Rato PDL I Dnt Need A Lot IFE --- U.S. TRENDS --- Maurice Sendak #SongsToPlayWhileHavingSex #ReasonsToSayAmen #ThingsMittTakesCreditFor Where the Wild Things Are In The Night Kitchen MET Gala Mother's Day North Carolina Colbert --- WORLD TRENDS --- I Believe I Can Fly Maurice Sendak Justin And Beliebers Rauhl Together #ReasonsToSayAmen #SongsToPlayWhileHavingSex #EnBaba?ef Where the Wild Things Are Feliz Martes Carles Puyol Chisora --- CHICAGO TRENDS --- #SongsToPlayWhileHavingSex Maurice Sendak #ReasonsToSayAmen Where the Wild Things Are #WhatHurtsTheMost Met Gala Tyrannosaurus Rex Amendment 1 Mother's Day
I don't think you can flip through these easily with the current Twitter UI, but you can change them one at a time on your Twitter homepage. Look for the "Trends" information, currently in the third panel on the left side of the Twitter web interface.
I'll update this article again this afternoon to show what the trends look like then, but as you can see, they can be quite different.