If you are a Webmaster who wants to drive traffic to your site you may be busy building links from other prominent websites. Good links to a website helps to get more traffice to that site. People create links on other sites usually based on the page rank that site has. Usually sites with higher page rank demands more money just to place your link over there. This is deemed as a bad practice by the google search engine, because taking page rank as a basis for buying and selling links will lead to decrease in quality of search results. Actually buying and selling of links based on the page rank can bring your page rank down drastically.
In order to drive instant traffic to your website, you need to place your link on a high traffic websites rather than on a website with less traffic but have a higher page rank. Alexa ranking given for a particular website is an accurate representation of traffic to a website and this can be taken as a basis for building your links. Placing links on a site with good Alexa ranking can share the traffic from that site to the site. The only thing you have to concentrate while building such a link is to craft nice headlines for your link.
A good link to your site from a site having high traffic can share the traffic to your site also. This will result in instant surge in traffic. Usually text advertisements are better than banner advertisements in driving attention to your site because it can serve as an advertisement as well as a link.