I love the font for RSS NEWS though it's too white or pearly in color? That makes it somewhat transparent. You might wanna make it a little more bigger IMO.
the minimalist style is very cool imo. My only concern is the text is a little too hard to read - perhaps a slightly darker shade of grey? I have mixed feelings about your domain name, at first I thought it was RSSNEWS and thought that was awesome but then I noticed the additional S. What were you reasons for going the additional S? The more I think about it, I kind of like it, the double S in RSS then double S in NEWSS kinda web 2.0 style, just wondering if you may lose traffic from direct type ins. Have you considered contacting RSSNEWS.com and potentially trying to buy that domain also?
I like the design, but I think it needs a sentence to explain what it actually does. So it's an RSS feed search engine?
The design is really nice, but at the first view the search button don't looks a button but some text. So some people maybe don't see that it is a button..