"Tech trouble causing Computer Stress Syndrome"

"Users face a continuous state of technical anxiety and challenge such as setting up new computer products, keeping up with software upgrades and migrating to new applications and operating systems, as well as dealing with malware infections, web threats, identity theft and more."

http://www.physorg.com/news191606138.html

"Response Times: The Three Important Limits" - On user interface responsiveness

"The response time guidelines for web-based applications are the same as for all other applications. These guidelines have been the same for 37 years now, so they are also not likely to change with whatever implementation technology comes next."

http://www.useit.com/papers/responsetime.html

"How do older people use e-mail?" - Making email systems more intuitive and accessible

"'We have observed that making it easier and remembering the steps to perform tasks is more important than increasing the size of the elements on the interface. This is clear from the importance that older people place on their independence. They don't want to depend on someone else to be able to send an email and they want to use the same mechanisms as other people', explains the researcher."

http://www.physorg.com/news190892706.html

"The Impact of Aesthetics on Attitudes Towards Websites"

"A user’s perception of a Web site can evoke a wide range of emotions and attitudes.  There is no question that aesthetics can influence important factors related to online purchasing decisions such as attitude toward the company, credibility, and motivation. Emotion has played an important role in capturing and keeping the public’s attention in traditional marketing, and it will continue to play an important role for online companies that want to build a personable and trustworthy face on the internet."

http://www.usability.gov/articles/062009news.html