At the dawn of time, a "blog" was short for Weblog -- primarily a way to share links of interest with like-minded people. To use one of the buzzwords of 2012, blogs were to "curate" web content.
Lately, I find myself doing more tweeting than blogging -- it's a quick and easy way to share links of interest. Here's a sample of what's happening in our "Semiconductor EDA" field, #semieda:
Tweets about "#semieda"