Expression of opinion is one of the things one can do on the Internet. We at LIRNEasia use it to communicate our evidence-based views. Our website is basically a blog. Evan Williams was a co-creator of Blogger and the largest shareholder of Twitter. He believes the model is broken.
For what LIRNEasia does, scholarly publishing with slow-paced peer review and print-on-paper publishing has not been the best fit. Our 2006 work got published in a 2008 book and our 2008 survey data got published in a special issue of a journal in 2011. But the question of assessing and ensuring quality is ever present and the natural answer is peer review. With peer review, delay is part of the package. Plus it can be a conservative force.