Not sure if this is self-serving by the folks at Rassmussen Reports, but it’s at least interesting. And this part is pretty good advice:
“As a consumer of polling data, it is good to have a wide variety of information to review. It is helpful to have some polls assembled in the manner preferred by most academic and media pollsters. It is also good to have data available based upon more firmly established parameters of partisan identification. In the end, a dose of common sense and critical thinking is required.”