te redirecciono a las secciones de búsqueda de cada una de ellas, yo introduje 'food' y tanbién 'nutrition' y hubo buenas cosas:
<a href='ir.asp?http://www.af.mil/search97/s97is.vts' target='_blank'>http://www.af.mil/search97/s97is.vts...</a>
<a href='ir.asp?http://server1.bciusa.com/searchimages/index.html' target='_blank'>http://server1.bciusa.com/searchimages/i...</a>
<a href='ir.asp?http://data.pg2k.hd.org/_cat/doHTMLSearch.jsp' target='_blank'>http://data.pg2k.hd.org/_cat/doHTMLSearc...</a>
<a href='ir.asp?http:// http://www.pcphotoreview.com/GAL_220_0crx.aspx' target='_blank'> http://www.pcphotoreview.com/GAL_220_0c...</a><-- no hay mucho acá.
<a href='ir.asp?http://www.istockphoto.com/file_search.php?PHPSESSID=2780fde6816ec23ca768f052 42d8b196&sectionID=0&username=&action= file&text=food&filetypeID=0&imagesearc h=submit' target='_blank'>http://www.istockphoto.com/file_search.p...</a>
<a href='ir.asp?http://www.btinternet.com/~fireballxl5/food/' target='_blank'>http://www.btinternet.com/~fireballxl5/f...</a>
Y nuca se nos olvide:
<a href='ir.asp?http://images.google.com/images?q=nutrition&ie=UTF-8&oe=UTF-8&hl=es' target='_blank'>http://images.google.com/images?q=nutrit...</a>
<a href='ir.asp?http://images.google.com/images?hl=es&lr=&ie=UTF-8&oe=UTF-8&q=food' target='_blank'>http://images.google.com/images?hl=es&am...</a>
Y
<a href='ir.asp?http://images.google.com/images?hl=es&lr=&ie=UTF-8&oe=UTF-8&q=nutrici%C3%B3n&btnG=B%C3%BAsqueda+en+G oogle' target='_blank'>http://images.google.com/images?hl=es&am...</a>