These web sites are identical -- or are they?
This survey compares 10 web sites through elements of their layout: styles, page construction and elements . . . The survey seeks similarities and differences between those well known web sites, built by famous, talented designers.
What can be observed is that those web sites agree on implicit, internalized layout and design norms, and that deviance from these rules is uncommon.
OmniMedicalSearch.com is a "metasearch of medical search engines." See the Overview page for information about different kinds of searches and the resources they use.