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Hi and welcome to Just Answer!
Same services might be taxable in one state and not taxable in the other...
Federation of Tax Administrators provides Online Searchable Data Base for taxable services - http://www.taxadmin.org/fta/pub/services/online/default_07.html
That seems the most comprehensive resource.
if you are looking for more details about which goods and services are subject of sales taxes in a particular state - I suggest these reports - http://www.taxadmin.org/fta/rate/sales.pdfand http://www.taxadmin.org/fta/pub/services/rr147srv.pdf
Let me know if you need any help.