Peak hours for sending a first email through the online dating system tended to be during work (eleven A.M. to four P.M.) and then just after dinner (seven P.M. to nine P.M.). I did have a few women send me a first message after eleven P.M. Those who did had an 82 percent chance of coming from a profile that had too many words.

If you're trying to cast the widest possible net to attract the largest selection of men or women, the last thing you should do is to start listing your income, political views, and the like. Avoid mentioning specific comedians, shows, or movies unless those are top-tier attributes on your list.

Make a list. Score your dates. Market yourself wisely. Find your needle.

Most people don't wear glasses in the U.S., and we're not conditioned to finding men and women who wear glasses sexy. If you need your glasses to see, find a good optometrist who can outfit you with a great frame, thin lenses, and a high-quality anti-reflective coating.

Popular women use positive, optimistic language in their online profiles, not buzzwords like "future thinker". Here are the ten most often used words I found: easy-going, love, laugh, laid-back, optimistic, outgoing, fun, down-to-earth, pleasure, adventure.

A lot of people try to use sarcasm to flirt, and it tends not to read well. Most people who are successful at flirting do so via instant message instead of email. The best way to flirt is to care deeply about whatever your date is saying and to focus all of your attention on him or her. Ask thoughtful questions. Take a keen interest in the conversation. Be enthusiastic.

Make your initial contact short and sweet. Five sentences or less, or under 150 words. If someone instant messages you while you're online, go ahead and IM them back if you want. Otherwise, wait twenty-two to twenty-three hours between email contacts for the first few messages. Don't send messages while most people are sleeping, even if you're wide-awake. Shoot for business hours or just after dinnertime.