you should get something for every click. maby your visitors are clicking on PSA (public service ads) for which you do not earn anything.
27 clicks and nothing? That sounds odd to me, either people are clicking PSA or google is detecting them as invalid clicks.
other than invalid clicks or PSA or it could be the ads were bid for the lowest pricing..it could be like that right... To me 1 click can make me my first cents. But sometimes 1 click still 0 cent
it depends what type of adsense they are clicking, for example if you have the link bar, you can recieve clicks although they have to click a link once they hit google, so you can get clicks although not be turning into an income.
Are you sure it's clicks, not impressions? My first click ever was definitely worth something at least.
Depend on the type of keyword is advertise... also make sure you had enough impression to cover the click thru..
You'll get something for every click on a real ad (not public service ones), as long as its a valid click, you didnt click in the links 27 times yourself did you? If you are getting legitimate clicks from real visitors and your getting no money, you should contact google as there is something wrong with your setup.