You can sign up in Google adwords for advertising your website or your products. Its a PPC advertising network and you make an ad campaign and set a maximum BID for it, then Google displays your ads on the relevant websites and when a visitor clicks on your ads, your account will be charged for it according to your maximum BID. You can read more information from Google Adwords page: adwords.google.com/support/aw/bin/static.py?hl=en&page=examstudy.cs
try the google first... then only you can use to know.. try to go in faq section where ur query can be easily solved.. !!
# Google adwords is a pay per click advertising model, you select keywords based on the product or service that your company provides. # Your advert will apear either in the highlighted bonus links at the top of the google search results page or down the right handside (11 positions per page) # you dont pay for your advert to appear you only pay when somebody clicks on to your advert and visits your website! # the price you pay per click is not determined by google it is determind by what your competitors are bidding........ the adwords pay per click model is an ongoing auction (similar to ebay) if you bid £1 for a key word but your competitor only bids £0.50 you will only pay £0.01p more so your click will cost £0.51p
I can not use Google adwords for website promoting but I know that it is a fast and best way to get traffic and visitors.