There is a domain www.biblioclub.ru There must be a link from the gateway page to the online university library to the online store to the business portal Each of these projects has its own registration. It is assumed that a single logo will be used (you can see it on the website www.biblioclub.ru) and a black through-strip that runs across all the pages of the library, the online store and the business portal. The idea was that there would be 3 transition modules (as one of the options, in the style of a metro map). But the information must still be indexed by search engines.