right now my site is slowly gaining more members, i don't expect to earn a ton of money off adsense, however i do expect to gain money via private advertising so i was curious, what type of price would i be able to charge for lets say a banner at the top of my page if i was getting 20k impressions a day? how bout 80k?
This would depend on your site. What is the avg cpm for your industry? A site that I work for we sale based on impression and the range is $12-$17 CPM.... Would need more info about your site to be able to give you a better estimate.
Like kajunplaya said it depends a lot on what you website is about. But if you get like 20k page views a day you could make like 100 dollars a week with absolutly no problem, yet some people demand banners only to show up once a day for one person. So in that case you would need lots of uniques.
I've found that it depends on the market your website is targeting. If it's a national or international market than you could charge over $500 a week, but if it's more of a local thing than $50-$100 a week is more appropriate.