For one, I guess the quality of work matters. When your ideas and views are beautifully illustrated, people definitely begin to notice. But what really keeps them coming back must be a dedicated effort by the blogger. 

 

I have read the same about music (Click here). Even a popular band needs to keep itself relevant. Linkin Park, is the example in this case, which keeps coming up with remixed/live albums (I believe the expression is "tide-overs"), to cover up the gap between two consequent releases. The buzz word, henceforth is consistent reminders.