I live on the West Coast in a big city, and its really easy to have a party life because there are so many people looking for fun. This is made easier if you have money, because you can buy cooler experiences, go to cooler venues, and you have a bit of social status from it.
Here is a step-by-step guide I used after coming out of an LTR.
If they can't make it, no biggie. Don't nag people, I don't invite more than once for most people, sometimes twice if they just didn't like that particular activity or were busy.
Once people try an adrenaline activity like ziplining with you, and spend the whole day with you, you'll be good friends. Its easy to build the relationship from there and invite them to parties, or go for the close.
Chat through facebook. Get their number. Chat through text, more convenient than facebook. Escalate language. Try to get pics. Invite her to your place, boom!