I stayed in a hotel called Hotel Glories - a little farther from Las Ramblas - in the Eixample area - but a very nice hotel nonetheless that I recommend. It has its own website at http://www.hotelglories.com

Other hotel websites include - http://www.hotelsspain.com/ http://www.bestwestern.com/ which has several in Spain and others which know I went to but dont remember their sitenames.

A website I found very informative is the message board on http://www.madridman.com/ There are many hotel reviews (not for just Madrid) on the message board.

Have a great trip.