The logo is missing and I disagree with the popup ad shown at the right down of the site, try to remove it..
You could redesign the site buddy, color schemes and layout are not that attractive. You can do it buddy.
More content is needed,i browsed in computers section and felt that you could have added some more content.
It`s too simple, the homepage doesnt share much info...Use a template, put more content to attract users...The way it is now does not convince me to use it. Good luck!
You had done a nice effort but still need to improve in working with layout and templates.Make them more attractive to impress visitors and add more useful contents too.Goodluck!