Two Barbaras

http://www.comicvine.com/barbara-gordon/36438/

and the actually good page

http://www.comicvine.com/oracle/5368/

There also used to be a huge Barbara Gordon page that got merged into the Oracle one. Sad to say its huge Gallery was lost completely.

I was pretty sure either myself or someone else pointed these out, but in addition to your National Publications one there, here's:

An Elseworlds one:

http://www.comicvine.com/barbara-gordon/7658/

And Barb, who is Barbara Gordon in the basis that Oracle appears on the cover of Barb's only Appearance:

http://www.comicvine.com/barb/22095/

wow, popular character. Almost as many pages as George washington.