Problem linking to other domains

What is the escape code I will need to add to an individual linktext to override the base href command so that I can add in linktexts to other domains?

I am currently using

<base href=”http://www.beyourowndetective.com/”/&gt;

in header.php, so that I may use relative image links, and in-site page links in my blog, however this creates a new problem I have not been able to solve.

I am currently unable to put an offsite link to another domain on my site without it adding my local base URL to it. Is there an escape code I can add to an individual linktext to override it?

I wanted to add a link text to clean-credit.org credit reports to my blog, but I end up with something like http://www.beyourowndetective.com/http://www.clean-credit.org appearing on my blog page.