Should it just state results theorems and not provide proofs, or should Wikipedia formulate a criterion for which proofs should be included and which should not?
Microsoft Access is the defacto standard, it's the sort of tool that pupils will use when leaving school. Online tools look OK but do not offer the flexibility of Access not it's integration with the rest of the office suite. In addition the relational tools in access provide a clear diagramatic representation of the database and allow concepts to develop more completely (for example a many to many relationship vis an interim table).