With the HTML5 Geolocation API, websites can determine your location coordinates but Chrome does allow you to easily fake your current geographic location.
If you do not wish to show your exact location in Tweets, you can either turn off geo-tagging or attach a random location.
How do you find out the postal address of a point on Google Maps when all you know is the approximate location?
This quick tip explains how you can find out the location where a picture was possibly taken with the help of Google Images.
Location based alerts are present in the iPhone and there are apps that can bring similar location-aware functionality to your laptop as well.
Learn how to geo tag your YouTube videos by adding the exact location where that video was taken.
Learn how you can easily determine the geographic location (city, country) and other details of an IP Address.
With the new location-based alert system, you can choose to get reminders on your Android mobile phone based on your geographic location.
Learn how you can control the visibility of your Facebook location. You may even display your current geo-location to select friends or hide it from everyone on Facebook.
If you wish to know the current location (city) of your Facebook friends, you can use the Friends Explorer of Facebook or Bing Maps.
Learn about services that will help you find Twitter users near you through the magic of location sharing.
How to use Foursquare - this video explains how you can update and share your GPS location with friends through Foursqure.
If you are travelling to another city (or country) and need to know about Facebook friends who may be located in that geographic region, here's how you can see them on Google Maps.
Google Latitude now provides an embeddable public badge to help you broadcast your current physical location directly from your website to anyone in the world.
Your friends and family members can know your exact location on Google Maps via Google latitude - a free application for mobile phones that can also be used on a regular web browser. It updates automatically as you move around and you may also use this to track school going children.
Gmail users who travel frequently will simply love this. You can now instruct Google email to automatically add your current geographic location in all your outgoing email messages so that recipients get to know where you are at the moment.