Wikipedia

[Tellos Athenaios]

Obviously one encyclopedia isn't going to cut it for using as the source of all your wisdom and knowledge; no matter what the subject. However; the point I wanted to make was that math, science and electronics are suitable for looking up in encylcopedia (if only for further sources) as these fields focus on established facts and information. History does not; hence an encyclopedia will virtually always be lacking as a source for whatever the historical subject.

For a quick comparison: if you want to know about the difference between DVI-D and HDMI; Wikipedia will be your friend in these confusing HD times.
But if you want to know the political motives for the diplomatic moves of the Tyrannoi of Syrakousai during the 1st Punic War... I wouldn't count on it...

[Tiberius Nero]

But if you want to know the political motives for the diplomatic moves of the Tyrannoi of Syrakousai during the 1st Punic War... I wouldn't count on it...

Besides it would be against the Wikipedia "no original research" policy to include interpretation of historical events; at best one can mention in there prominent views of historians, ancient and modern, on this and that, but not present them as definitive and final.

[Dhampir]

Encyclopedia present only factual synthesis. They are utterly useless for academic work when you need interpretative and primary source material.

[delablake]

Encyclopedia present only factual synthesis. They are utterly useless for academic work when you need interpretative and primary source material.

exactly my point.
Wikipedia is useful as a source of links and sometimes even for secundary literature. I have the impression that it might be quite informative in the electronics/physics/chemistry and botanics sector (at least data on natural sciences I have to take as given ) but I found it more than questionable in terms of the humanities. Here it's more prone to smug smattering and interpretation...