Talkspot Sign in Widget is a great way to control who comes and goes to your website. You can make the whole site secure or just one page. It is also useful if you want to gather more information about your visitors than just their email address.
The Sign In Widget allows you to specify a list of up to 20 different pieces of information. Examples might be: Address, city, state, zip, phone, a photo. You could also collect things like: number of children, boat owner (yes/no), etc. Just make one line for each piece of information you'd like to collect.