One space is for newspapers, like dropping the pluralizing "s" on possessives ending in "s." They need the space. Two is much more readable, especially when one encounters the horrible run-ons most so-called typographers employ. Abusive comment hidden. (Show it anyway.)
The MLA is nice, if you're formatting a newspaper and need every space. If you actually care about readability, use two spaces. Speaking of readability, I've switched to Droid Serif for my legal pleadings. Judges love it. Abusive comment hidden. (Show it anyway.)
Speaking of readability, I've switched to Droid Serif for my legal pleadings. Judges love it.