I'm looking for ways to automatically display web content inside
a PowerPoint presentation (e.g., as part of a slide) without having
the presenter to click on a hyperlink. Basically, during the
presentation, when the slide appears it should automatically load the
content (text, images, movies, sounds) of the specified by URL web
site.

Have you tired making screen captures of each webpage, saving them as
JPEG images and then importing or pasting them onto 1 MS PowerPoint
slide at a time?

omniscientbeing-ga
Google Answers Researcher

I'm interested in displaying dynamic web content, e.g, stock quotes,
weather reports, movie streams, so your idea is not going to work.

This can be done using VBA code.

omniscientbeing-ga
Google ANswers Researcher

Yes, what cannot be done via a VBA code? :-) 

I'm looking for either a ready-to-use control or for a ready-to-use
snippet of VBA code.