The sites’ funders are motivated by arguablysuspect goals, but the published results—often at some editorial remove—are free andaccessible. Indeed, The Conversation‘s university, government, and foundation subsidy foropen-access is an implicit model for breaking the lockdown of Elsevier, SAGE, and the otheracademic-publisher oligopolists.
Anything that helps to break the lockdown of Elsevier et al. is worth watching.