Why don people indent for paragraphs on the INTERNET?
The accepted style for computer documents, since well before the internet existed, is a blank line between paragraphs, with no indent. Which style you use is, of course, a matter of taste. Neither is right or wrong. On a computer screen, the cost of a blank line is literally zero. On computer printout, the cost is a tiny bit of paper. On traditional printing presses, with hand-set lead type, the cost of a blank line is a whole line of lead spacer, which is relatively expensive. It seems likely to me, therefore, that the custom of using a small indent at the start of the line rather than a whole blank line was an economy measure in the days of lead type. This economy no longer being necessary, people have chosen the more obvious blank line.
