I have one personal Twitter account, @JohnDCook.
I also have 18 technical accounts. These accounts post once per day, Monday through Friday, and have occasional unscheduled posts.
Math and statistics
|@BasicStatistics||Statistics for laymen|
|@DataSciFact||Data science, statistics, machine learning, etc.|
|@AnalysisFact||Real and complex analysis, misc. applied math|
|@AlgebraFact||Algebra, number theory, and misc. pure math|
|@NetworkFact||Networks and graphs|
|@TopologyFact||Topology and geometry|
|@dsp_fact||Digital signal processing, acoustics, Fourier analysis, etc.|
|@FunctorFact||Functional programming and category theory|
|@SciPyTip||SciPy, scientific computing in Python|
|@UnixToolTip||Unix command line utilities|
|@RegexTip||Regular expressions in general|
|@TeXtip||TeX and LaTeX tips, typography|
Science and medicine
|@UnitFact||Units of measure and related topics|
If you would rather subscribe to one of these accounts using RSS rather than through Twitter, you can find their corresponding RSS feeds here.