Broken Links Are A Waste Of Link Power

This advice is still sound today and the most important piece of advice out
there in my opinion. Yes it’s so simple it’s stupid.
Check your pages for broken links. Seriously, broken links are a waste of link
power and could hurt your site, drastically in some cases. Google is a link
based search engine – if your links are broken and your site is chock full of
404s you might not be at the races.
Here’s the second best piece of advice in my opinion seeing as we are just
about talking about website architecture;
Link to your important pages often internally, with varying anchor text in the
navigation and in page text content
…. especially if you do not have a lot of PageRank to begin with!