I have to disagree with the notion that straight quotation marks are better than the curly or "smart" quotes. Furthermore, I am disheartened to see that this page uses the straight marks. The fact is that, strictly speaking, in correct usage, there is no such thing as a straight quotation mark. That double-tick symbol exists solely as an abbreviation, shorthand to represent inches or seconds. As a quotation mark, it came into use as a compromise, at best. Typewriters, machines of efficiency, allowed for only one key, one character to represent both the opening and the closing quotation marks. On the same token, there was no zero key, nor one for the number '1' on a typewriter. Today, we would never use an upper-case 'O' nor a lower-case 'l' to represent those characters. Neither should we stick to severely outmoded and entirely unnecessary replacements. We can't even use the excuse that the typesetter was lazy.
In the day of electronic typesetting and proportional fonts, those dinosaurs are truly obsolete, as arecarbon paper and two spaces after a period. We are not using Royal or Smith-Corona dactylographs, and you don't have to press hard to make three copies!