Duplicate Content

[Adnan4SEO]

I run a Business Directory, Where all the businesses are listed.  I am having an issue.. with Duplication content.

I have categories, Like A, B, C

Now a business in Category A,

User can filter it by different locations, by State, City, Area

So If they filter it by the State and the State has 10 businesses and all of them are in one City. Both of the page
The state filtered and the city filtered are same,  What can i do to avoid that?

canonical-url-tag or changing page Meta's and Body text?

Please help

[Adnan4SEO]

Thanks a lot Cyto for the quick and helpful answer!

[Bio-RadAbs]

All 3

• canonical-url-tag,
• changing page Meta;
• and Body text.

In addition to the body text, bring in city specific and state specific content for that category. Images, text and even cross selling to make the page unique.