In a previous article looking at digital business cards, I checked out a site called Cardcloud.
In addition to providing a mobile app for you to exchange information, business card style, Cardcloud turns your public card information into a URL for easy sharing online. The page consists of your business card on a simple background, viewers can click on the icons for any social networking sites you've added to your card.
Other Cardcloud users can click the 'Connect with me' button to send you their card, and the 'Download my vCard' button lets visitors do just that.
Cardcloud is perhaps the quickest way to make sure you exist on the Internet. All you have to do is fill out a few simple contact fields, and you have a website. If you download the mobile app, you also get a quick way to share that information with other people.