How do I block specific places on a web site's domain?
Try Parental Controls

one caveat, the account you want to control cannot be a administrator of the machine in order for this to work.


open System Preferences &gt; Parental Controls
Unlock it using the lock at the bottom left of the dialog. and entering an admin password.
Enable Parantal Controls
Choose an Account to be controlled by clicking Enable parental contorols in System Preferences &gt; Accounts for the user that needs control.
Next click Open Parental Controls...
Then select the Web tab and choose Try to limit access to adult websites automaticly then click Customize...
Add any sites you do not want access to such as http://google.com/news to the Never allow these websites section.


This should work with any browser in that account.