Using WieWasWie is free of charge. All data and scans are open and can be zijn searched and read for free. With Premium access however you can also use the extra benefits within WieWasWie. You can search for the combination of two persons in one search. And by using so-called 'wildcards' you can search for different derived family names in the same search, for instance "Graaf" and "Graeff". Also you can save your favorite search requests and documents, making them easily archived and giving you the opportunity to receive email notifications whenever there are changes in either one of them.
"CBG Friends" receive a discount on the Premium access. Depending on the kind of Friendship they pay only € 10 for one year of Premium access or the access is even for free. Look for further information on the CBG Friends at www.cbg.nl.