Apr 12, 2011 09:50 GMT  ·  By

Twitter trends are a great way of getting the pulse of Twitter and the world, but with everything on the web going 'local' having trends catered to your particular city or country is a no-brainer. Twitter started doing this last year and now is expanding it to 70 more locations.

The feature should prove rather useful since finding out about things happening in your town is bound to be more relevant than the latest viral trend on Twitter.

Advertisers should be happy to be able to have a more targeted audience for Promoted Trends as well.

"We first launched Trends as a useful way for people to find out what topics are being talked about around the world, right now," Twitter writes.

"Early last year, we added Local Trends to make it easier to find more locally relevant topics in specific countries and metropolitan locations. Today, we’re adding Trends for more than 70 new cities and countries - bringing the total number of locations to more than 100," it announced.

Twitter launched the localized trends feature more than a year ago in several locations. More locations were added along the way.

With the new expansion, most US cities and many countries around the world should be represented. Santiago, Jakarta, Kuala Lumpur, South Africa and Japan are just some of the new locations.

While local trends are very powerful in theory, in practice Twitter needs to encourage more users to geotag their tweets if it wants localized trends to be relevant or popular.

Even so, expanding the local trends feature could be a precursor to a more refined Promoted Trends feature. Currently, advertisers can buy Promoted Trends which will be displayed globally. But if Twitter wants to scale its ad business, it needs to open up to more advertisers and this means better targeting and a self-serve service.