When URL shorteners first came about, spammers used them to disguise malicious links. Now that social networks like Twitter have propelled shortened URLs into widespread use, people are more comfortable clicking through. However, there are still occasions in which you confront possibly dubious links.
Rather than debate the pros and cons of clicking (We’re guessing that ZOMG! video is never worth turning your PC into a spambot.), we recommend bookmarking a URL checker to find out just where that enticing link points before you click through.