Yahoo! aggregates the billions of searches performed across Yahoo! properties to give the pulse on what people are thinking and talking about. Searches represent the people, an instant poll every moment of the day, looking into the fleeting moods and entrenched attitudes of Internet users across the world. Each week Yahoo! Web Life Editor Heather Cabot explores these trends on local and national broadcast. Tax Day, the Royal Wedding,  and the Final Four are buzzing this week.

Tax Day
Now that it’s April first, people aren’t joking about getting their taxes done on time. Searches for tax filing are up 1500% this week.  More than two thirds of those queries come from men and the top states looking for tax info are Alabama, New York and Ohio. We’ve noticed that folks are a little confused this year about when tax day falls.  Yahoo! searches for “when is tax day” are ramping up.  Here’s the scoop -- the IRS moved the deadline to Monday April 18th because the District of Columbia will be observing emancipation day on the 15th. For more information on taxes check out Yahoo! Finance:

Royal Cake
With the royal wedding around the corner, curiosity about the big day continues on Yahoo! including lots of questions about the cake.  Lots of people want to know more about Fiona Cairns who will be designing the wedding cake and also prince William’s favorite – chocolate biscuit cake which will be a second dessert served at the celebration.

Since Prince William and Kate announced their engagement in November, searches for details on the happy couple and their nuptials have grown 8-million percent! To meet the insatiable demand for details – we’ve set up a site – royalwedding.yahoo.com – where people can get the latest news about the event and even sign a digital guestbook – with well-wishes for Kate and William.

Basketball Buzz: Final Four
In sports news, the run up to the Final Four and the unlikely teams who will be playing in Houston this weekend are keeping internet users buzzing.  Searches for “unthinkable final four” are off the chart this week. VCU is getting the most buzz – queries are up 143% and fans are especially interested in Virginia’s coach – Shaka Smart. Searches for him are up nearly 200%.

According to Yahoo!, this Week’s Top Searched Final Four Teams are:

1. VCU Basketball (searches up 143% this week)
2. Kentucky Basketball
3. Butler Basketball
4. UConn Basketball

According to Yahoo!, this Week’s Top Searched Final Four Coaches are:

Email Habits: New Yahoo! Mail Survey
And last, a new Yahoo! Mail survey shows digital etiquette may be reaching a new low.  Close to half of people polled say they check their blackberries at the dinner table.   On the other hand, more than 70% think it’s fine to send email thank you notes. So at least we're minding our manners even if it's electronically.

Check out the video for more trends spiking this week.