All those funny threads where you post pictures of Bush saying goofy things? That's propaganda. That's speech designed by you to have an impact on how people think, which is what propaganda is.
And we do. Not just political propaganda, but propaganda designed for marketing too.
At the same time it's worth noting that propaganda isn't always bad, and it's not always wrong. It's merely a descriptive term for methods used to get an idea across to lots of people. Bad or wrong depends on what the idea is.
Actually, I think President Bush's posts are more in tune with irony as he frequently uses the President's words (and pictures) to convey a subtle humor. I sincerely appreciate President Bush's post (and pictures) as they often lighten a tense mood in a particular thread.
Propaganda DOES have negative connotations otherwise the internet would simply be "The Propaganda Highway," or CNN would simply be the "24 Hour Propaganda Network" and advertising would be simply "Sales Propaganda." The words (to me) aren't interchangable for obvious reasons - people don't respond well when they KNOW they are being steered (like me at a Steven Spielberg movie) either mentally or emotionally.
An important element of propaganda is the mixing of truth and fiction in a manner that might confuse the viewer or listener. When the "Truthiness" (thank you, Stephen Colbert) is shown to be an outright MISTRUTH the propaganda laughingly falls apart (as RandFan aptly demonstrated in the OP). To excuse the head of one of the most powerful countries in the world for his misuse of the term makes you one of three things:
A. an apologist
B. someone who can categorize Goebbels as merely, "An Information Expert" or
C. someone who has drunk more than his share of the Kool-Aid or
someone who (like me) has been a little too fast with the mouse button and tried to make a point without reading a little more and being a little more skeptical. I feel RF has fallen into this category and it's one that should be familiar to everyone here. Public humility and shame can make you go a long way towards gaining a little more empathy with others. RandFan, Ziggy, Rik, Elind, Zenith, Mycroft and several others (on the other side of an imaginary line) once extended me some needed sympathy and understanding when I committed my rhetorical faux pax, so I understand how RF feels.
However, I still assert that propaganda and information are NOT interchangable when the purpose and the target audience are taken into consideration. Bush DID misuse the word unintentionally and although I believe Bush uses propaganda very effectively, I don't think he's used it to push his Social Security "reform."