As i've met around 20 people in person on internet dating sites plentyoffish.com and girlsdateforfree. Plentyoffish being the best one for genuine people IME, i thought i would give you some tips.
Never spent months chatting to them before meeting them. (you may not connect when you meet, and then you ve wasted all that time on one person)
Always chat to several people at the same time, therefore if you get disappointed by one person, you then still have others in line and it wont bother you so much.
Never tell someone you plan to meet that youre talking to others. (They think you are only after fun, when in fact youre just not putting all your eggs into one basket)
Spent time talking to them on the phone first, that gives you a good idea of their communication skills and gives you a feel if you ll get on well or not.
Never travel miles to meet anyone, always get them to come to your area (unless u ve met them before)
If he doesnt pay for the first meal or wants to "go halves" then hes a no go-er!! Hes tight basically.
I always followed these rules, and im now married to someone i met on plentyoffish so i believe they work!