You can make your own widgets without even a skerrick of code and this includes embedding pretty much any web page so that students don't have to open another tab and get off track. You simply follow the links to create your own widget by putting in the URL of the wep page in question and setting the size you would like.
Voila! Then it is simply a matter of copying the code and inserting it in your wiki, moodle etc.
Update: I have to retract the above couple of paragraphs, I got an email from Widgetbox rejecting my widget :( I should have read the fine print a little better, it turns out that they don't allow full page embeds. I guess it would slow down their servers too much.
Instead have a look at the Blidget (Blog widget, isn't that great? A new word made from two relatively new words) I made on Widgetbox. Neat huh?