A blog is perhaps the most popular tool (although I should probably use the word 'strategy') nowadays to gain authoritativeness and, with that, new clients!
I'm curious: do you guys run a blog or do you plan to set one up? If you run it, you should showcase it here! We could, like, index them all in this first entry and create a master post.
(If you don't, like me, you could still share why you don't (yet) or whether you have doubts a blog will actually be helpful to your business - but I guess that's a one in a million chance, right?)