It was just an example, the point is that these services have democratized access to information and have greatly helped bring up less wealthy people. Ad-based

It was just an example, the point is that these services have democratized access to information and have greatly helped bring up less wealthy people. Ad-based model has it's fair share of problems, but being able to give everyone, even the poor who wouldn't able to afford it, access to information that can help them improve their lives, is easily the best argument for that model.