This site says, under porter: "Porter’s name comes from the Porters at London’s Victoria Station." Wrong! Porter as a drink is 130 or so years older than Victoria Station, and the name comes from London's street and river porters of the reign of George I

It also says: "Arthur Guinness and Sons was the first brewer to offer a Porter commercially." Wrong! Porter was developed by brewers in London 40 years or so before Arthur Guinness began brewing. Guinness never brewed porter at first, and started brewing the drink only in the 1770s or thereabouts, in response to increasing amounts of porter being imported into Ireland from England.

What this site needs is to read a good book on brewing history ...

"Ales are usually higher in alcohol and will be noticeable fuller and more complex."

"Lagers tend to be lighter in color and usually taste drier than ales. They are generally less alcoholic and complex."

This is simply inaccurate. There are many ales that are low alcohol, light bodied and simple, and there are many lagers that are big, heavy, dark and very complex. In fact, these scenarios are common enough that you can't even say those two statements are generalization. Some of the strongest beers are bocks (lagers), which are very malty and very dark. In the ale category, you have lambics, which are very light, almost no hop character and very low alcohol content.

It all goes back to the definition of lager and ale. Lagers use "bottom fermenting yeast" and tales use "top fermenting yeast." That's all there is to it.