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Each web page offers continually updated information about the Library ’ s resources , hours , services and activities , as well as active links to ODIN and other databases and web sites . On upgrading from the previous TWiki , a Form Template topic has to be built for each web that used a Category Table , recreating the fields and values from the old twikicatitems.tmpl . There are three level of preferences Site-level ( TWikiPreferences ) , web-level ( WebPreferences in each web ) and user-level preferences ( for each of the TWikiUsers ) . In step one , you need to add a small HTML form to each web page at your site . Here 's why : Web sites need to be promoted , and one of the best ways to get your web address out to the public is through an attractive , full color brochure In most families , there is one member who is the " computer specialist " who glances at each web site for an average of about 30 seconds .