Read an article printed from a blog – less than three pages; 5 minutes. Link overload – the article has 60 links.
Visit each link for a quick check: one minute each = 60 minutes. Read ten of the interesting ones in more depth: five minutes each = 50 minutes. Click on two of the links from each of the interesting pages to explore some more: one minute for a quick check = 20 minutes.
Total professional reading time: 2 hours 15 minutes.