Url rewrites / shortcuts - Are they considered duplicate content?

[seosquared]

When creating a url rewrite or shortcut, does this

• create duplicate content issues?
• split your rankings / authority with google/search engines?

Scenario 1

wwwlwhatthehellisahoneybooboo.com/dqotd/

->

www.whatthehellisahoneybooboo.com/08/12/2012/deep-questions-of-the-day.html

Scenario 2

bitly.com/hbb

->

www.whatthehellisahoneybooboo.com/08/12/2012/deep-questions-of-the-day.html

(or to make it more compicated...directs to the above mentioned scenario 1 url rewrite)

www.whatthehellisahoneybooboo.com/dqotd/

*note well- there's no server side access so mentions of optimizing .htacess are useless in this situation.

To be clear, I'm only referring to rewrites, not redirects...just trying to understand the implications of rewrites.

Thanks!

[David_ODonnell]

Regarding bit.ly, from their FAQ:

_bitly works by issuing a "301 redirect": a technique for making a webpage available under many URLs. When you shorten a link with bitly, you are redirecting a click from bitly to the destination URL. A 301 redirect is the most efficient and search engine-friendly method for webpage redirection, and is what bitly uses. Because bitly doesn’t re-use or modify links, we consider our redirects to be permanent._So you're fine there. Re your own short links, you'll have to check whether they are redirecting or using cannonical tags.