Being interactive does not only mean having sophisticated website layout and designs. Being interactive actually varies in perspective. If you think that what you only need is a flash website to be interactive, then you’re wrong.
Interactive also means dynamic. This is also allowing site visitors to communicate with the site admin and other site visitors. For those sites that focus on text, interactive display may not look enticing to the visitors. What visitors will look for this kind of site is the richness in contents.
As long as you can provide opportunity to be social when people visit your site, then you are being interactive. Interactive website without flash is still in and the choice of many website owners these days.