There are many places out there with tips for CRM. Lots of them are indeed good.
One of the main sites that I go to is https://crmtipoftheday.com/. They have a searchable archive, and are really quite amazing at times.
They also have a good logo (importance of marketing):
And of course a Twitter feed – https://twitter.com/crmtipoftheday?lang=en (yet another thing on my list of items to get up and running)
They sometimes reference in material in other locations, such as websites and blogs. Therefore it’s a good place to start to expand knowledge of areas that are being talked about.
It’s even possible to submit your own tip if you have one (something on my list of things to do – just got to find the right one!), or ask a question which they then may answer