USA ESTA application is for travelers from VWP countries. It is visa-free travel for 90 days but the travel authorization is valid for two years. It means, you can visit US for as many times as you want but each time your stay should be up to 90 days.
As a VWP traveler, you need applying for travel authorization even when you are entering US for transit - enter “In Transit” in the address.The only way to apply for travel authorization is to apply online and the best way to apply for ESTA is to take help of a website that specializes in electronic visa. The site will fill the application on your behalf and in this way make sure that your request for visa-free travel is entertained.
Rely on the site that gives correct and satisfactory answers to all your esta visa faq. There are many websites that provide help in filling and submitting application for electronic authorization but not all sites are reliable. You have to be careful while choosing a site for applying for visa-free travel. While the application can be filled in four-simple steps, you need to be very careful with the details entered.
The US government charges a nominal visa fee of $14 for processing the application, sites that provide help in ESTA add their service charge to the mandatory fee. While they are free to charge any amount as fee, most sites charge around $87 as a composite fee for service. This fee includes the mandatory $14 fee for application processing. You can shop around to find the most cost effective service provider but you should focus more on quality than price.
The site will submit your application in the official esta online form and also keep checking the application status. You will get information regarding your electronic visa from the site. It will mail you the approval in PDF format.The approval could come within an hour but sometimes authorities take more than normal time for processing an application. In any case, you will get response in 72 hours and for this reason travelers are advised to apply for electronic visa 72 hours before travel.
Just like you can apply for individual ESTA application, you can also apply for group visa, if you are traveling with a group. The group could be a family; friends; office colleagues or even neighbors. The US authorities will consider the entire group as an individual and issue one visa for all. The ESTA website will fill group visa application and charge accordingly. The site will also inform you about the visa status.
For more info about ESTA Renewal visit http://usaestavisa.livejournal.com/1402.html