Google Scholar
Free and fast access to state and federal case law, and a good place to get started though not searchable by court. Be sure to select “Legal Opinion and Journals” radio button for caselaw research.
Fastcase
Free for NCBA members and is the leading next-generation legal research service that puts a comprehensive national law library and smarter and more powerful searching, sorting, and visualization tools at your fingertips.
HeinOnline
Paying service offering comprehensive access to law journals.
Westlaw
Paying service offering comprehensive legal research.
Lexis
Paying service offering comprehensive legal research. Offers a “lite” version for free, and a web search for legal content. Publisher of “North Carolina Appellate Practice and Procedure”, the leading treatise on appellate practice in North Carolina, available in print and on Lexis Advance.