What will be the effect for rel="canonical"

If I added rel="canonical" then what google will do. What effect will made. Can I use it instead of redirection

 

that would be used if you have multiple pages with very similar content.
read more http://googlewebmastercentral.blogspot.com/2009/02/specify-your-canonical.html

you would do redirect if you dont need a page any longer.

 

I think 301 redirect is better.

 

A link rel=canonical works like a 301 redirect... the 301 is preferable if you can do it... a rel canonical is generally used to avoid duplicate content. if you have multiple urls (parameters or sid) with same content, you can say to Google :"Hey dude, the legit content is there"

Hope this helps

 

i heard this term: rel="canonical" very first time through this thread.... now I am going to read about it in detail on google.... thanks for giving a new term

 

Using this you can instruct the Engine that ,the original content is there and not penalize me for publishing the original content here