when clicking on [selected] there will be a dropdown which will display the categories and when a category is selected, the last picture and question posted in that category will appear in the slideshow. I'm afraid if there will be tens of categories the dropdown will be annoying being too high. I'm also not sure about what to do with the "topics" there.

I think a black background will not match the rest of the design and think about the fact that there could be uploaded pictures with small sizes. Big slideshows looks great due to the large size of the images

e.g: buildinternet.com/project/supersized/default.php

in the picture, there is no header and footer. I'm a little bit confused about how people will get on the previous page or homepage.

mouser thanks for your nice words.

the idea of this website is great! a lot of webmasters receive user opinions via e-mail and most of them actually don't have a feedback page.

How does it work? You and your team manage a collection of quotes from users, links to online reviews, email testimonials, and feedback comments. Then specify how you want them displayed -- show them off on standalone pages (hosted on our server or yours), or embed them on your existing website pages using attractive "quote boxes". Automatic thumbnails create a professional and eye-catching look.

where or how can webmasters do the things above?

Happy New Year 2011!