There is a free "clipping tool" which either came with your tablet or can be downloaded from the Tablet PC download area at Microsoft. With that tool you can use the stylus to draw a circle around any portion of any web page, image, document -- whatever --, copy it to the clipboard, and then paste it back into the Journal.
What you get with this is simply an image in the Journal. Any links from the web page will be inactive in the Journal because you are basically taking an electronic photocopy of part of the web page and pasting it into the journal. Like a scrapbook. I am not aware of any way to paste web links into the journal where the pasted web page would be an active link on the journal page.
I hope this helps.