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Twitter has announced it will run personalised advertisements based on what an individual user is writing about. It's an attractive proposition for advertisers but may come across as creepy to users of the social media service. Most Twitter ads are ... based on the people a user follows and the types of messages that users retweet (or share with other users). (Source; pcworld.com ) The new advertising model will go beyond that and incorporate technologies from two popular ad-funded web giants. Like Facebook, Twitter ads can now be targeted to people of a particular gender, living in a particular ... (view more)

In computer science, session hijacking is the exploitation of a valid computer session (commonly known as a "session key") used to gain unauthorized access to information or services in a computer system. For example, when a user logs in to a web ... site, the user's PC is tagged with a session key using a browser cookie (a cookie is a small file stored on the users PC that the browser reads). Any time the user requires access to a restricted area of a website (usually requiring login), the session key is extracted from the users' PC and compared to the key stored on the web server. If valid, the ... (view more)

Google has unveiled technology that allows search users to customize their results and even post comments about particular sites for other users to read. However, the firm has dropped a separate unbranded search engine which it had been using to ... test out new features. The main feature of the new SearchWiki tool is a series of buttons which appears next to each result whenever you search while signed into a Google account (such as Gmail). The first, an arrow pointing upwards, allows you to move a site up the list of the results. (After doing so, you also then get the option to move it down ... (view more)

Google has come up with yet another new feature for its Gmail system. This one allows users to store a range of 'standard' responses and even have them sent automatically to emails based on their content. The 'Canned Responses' feature lets you set ... up a range of replies for particular situations that you experience commonly. It's the same kind of idea as an 'out of office' message but lets you tailor the response to different types of correspondence. For example, as a tech writer, I receive emails from computer-related organisations with story ideas. When I'm pressed for time, I'll usually ... (view more)

Have you ever come across an ad for a software program that looks especially interesting? For example: an ad might claim that the program has won awards and is the absolute best at doing a particular maintenance task on your computer. The truth is ... that some ads can be very compelling, but often mislead users into downloading unscrupulous software. So how do you know if the claims true? Is the software legitimate? Is the software malware? How can experienced users decide -- and what about inexperience users? Well, I am going to tell you how I go about finding the answers. It is not difficult ... (view more)