What's the additional cost to maintain something like this long-term? I'm just thinking about articles that could be 10-15 years old (10-15 years from now mind

What's the additional cost to maintain something like this long-term? I'm just thinking about articles that could be 10-15 years old (10-15 years from now mind you.), you could have a substantial database of links to maintain and keep updated, not a small task.