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Foursquare is set to reach 10 million users this month. With the continued increase in popularity, developers are beginning to use Foursquare's API in some very fun and intriguing ways. This guide will show you seven fun ways to interact with your Foursquare account.

1. 4sqmap 4sqmap is a great way to visualize many different aspects of not only your own, but your friends' Foursquare activity. In addition to viewing activity, you can view a full map of nearby specials, tips, trending venues, and even use Foursquare's recently launched Explore feature on your computer, which is a feature … Read more

For more than a decade, people like you have flocked to How To stories and videos we've produced on CNET. (iPod your car, anyone? Wow, that's a blast from the past.) Whenever we write a roundup of iPhone tips or a collection of Chrome shortcuts, you click like crazy, discover inspiring new tricks, and share your newfound tech knowledge with your friends.

We're finally putting all these hacks, tips, tricks, and ideas into one home: CNET How To. We're launching with more than 700 How To posts, and we'll give you a steady stream of … Read more

Finally, Apple has given users a way to sync their purchased music, apps, and books wirelessly. With iCloud, whatever you download on one device--your iPhone, iPad, iPod Touch, or computer--can be set to automatically download on all other devices.

For example, when you purchase a song from iTunes using your computer, it'll immediately be downloaded onto your iPad also. Or, if you purchase a book on your iPhone, it'll be downloaded to your computer and your iPad as well.

More iCloud features, including calendar syncing and Photo Stream, will launch in the fall. Until then, you can use the iCloud beta for free to sync your music, apps, and books. Here's how:

Note: iCloud syncing is not yet available for Verizon subscribers.

… Read more

Until fairly recently, Facebook made it easy to download pictures from your friends' galleries--or at least as easy as any other Web site. Just right-click on the pic in question, select "Save image as..." and drop it in a folder of your choice. Facebook's new gallery app may look slick, but it kills off that easy way to download. Fortunately, there's a simple workaround. 

From the album page, right-click (or control-click if you're using a Mac) on the picture you want to download and select "Open link in new tab" or "… Read more

We've all seen Facebook posts that say things like, "Finally! Facebook got a dislike button! Click here!" or "See who is viewing your profile OMG I cannot believe it!!!!!!" or something else equally enticing.

Some of us, overwhelmed by desire, have fallen for these posts and learned an important lesson the hard way: Facebook is full of spam.

Many of us fled MySpace in hopes of a cleaner, spam-free, and polished platform, but it was only a matter of time before hackers figured out how to attack us on Facebook, too.

On Facebook, there are … Read more

Google recently learned a lesson in security when it found that hundreds of user e-mail accounts, including ones belonging to U.S. and Chinese government officials, had been hacked.

Hackers are professionals in their field who prey on unknowing (and sometimes even tech-savvy) individuals. With the rise in hacks recently, it's time to check to see if your Gmail account is secure.

Below you'll find five best practices for securing your Gmail account. Each one is free, built into Gmail, and easily configured.

1: Enable two-step verification All that hackers need to access your Google account (including YouTube, … Read more

If you have a Facebook friend who updates his or her status with incredibly uninteresting topics and with too great a frequency, there is a way to remove this person's posts from your News Feed without the awkwardness associated with unfriending or blocking the person in question. You can hide a friend's updates, which removes them from your News Feed but keeps them on your friends list. They'll never know they've been hidden. And the process is simple to reverse, should you want to unhide the offending friend and add their updates back to your News Feed.… Read more

In word processing, there are three beasts: Microsoft Word, OpenOffice, and Google Docs. Most users are likely tied to Word, but its offline, collaboration-free nature makes it look a little boring next to Google Docs. 

Whether you use Docs as your primary word processor, as a place to keep your files in the cloud, or just as a notepad for your online finds, these tips will help you get the most out of Google Docs.

1. Easy uploading. To quickly upload files of almost any format to Google Docs, drag and drop files from your hard drive to the Docs home page. To upload an entire folder (like My Documents), go to Upload > Folder. Subfolders will also be added. 

2. Better photo inserting. Easily insert a photo into your doc by dragging and dropping files from your hard drive into the doc. To wrap text around the photo (pictures are put in-line with text by default), click it and select "Fixed." If you plan to grab a photo from the Web, go to Insert > Image > Google Image Search. This tool is far better than searching, saving a photo to the desktop, and reuploading it to Google. … Read more

If Facebook's new facial-recognition photo-tagging feature has you thinking more about how you are sharing information on the site, one easy tool at your disposal is Facebook Groups. A group lets you share different information--status updates, photos, links, and so on--with different subsets of your Facebook friends. Create a group of local friends and another one of old high-school buddies so that your neighbors on Facebook don't have to listen to the intricate plans surrounding your 20th high-school reunion. Or create a group that includes everyone but your mother, who recently surprised you with her Facebook presence. … Read more