I'm so old I remember when conservative blogs and websites used to communicate with each other on email lists and by frequent linking to each other.
When Legal Insurrection started in October 2008, that was how we let the world know we existed and what we were writing. So-called "blog whoring," whereby smaller blogs clogged the inboxes of people at larger websites hoping for a link, was how it was done. This website would not have thrived without the appreciated links from Instapundit, Hot Air, Michelle Malkin, and
dozens of other blogs.
Our
Twitter page says we joined in December 2008, but I think it was another year or so before Twitter became a central communication focus for conservatives. In those "early" days I remember conservatives dominating Twitter -- the common wisdom was that liberals ruled on Facebook and conservatives ruled on Twitter. That has changed over time, and liberals are just as if not more influential on Twitter.