Associations:

National Cannabis Bar Association
https://www.canbar.org/

National Council of State Legislatures
http://www.ncsl.org/research/health/state-medical-marijuana-laws.aspx

National Cannabis Industry Association
https://thecannabisindustry.org/ncia-news-resources/blog/

Massachusetts Cannabis Control Commission
https://mass-cannabis-control.com/

Blogs, News, and Journals:

Canna Law Blog
https://www.cannalawblog.com/

The Weed Blog
https://cannabismaven.io/theweedblog/

Marijuana Business Daily
https://mjbizdaily.com/

Cannabis Business Blog
https://www.gsblaw.com/cannabis-business-blog

Cannabis and Cannabinoid Research
https://www.liebertpub.com/loi/CAN

Advocacy Groups:

Americans for Safe Access
https://www.safeaccessnow.org/

Drug Policy Alliance
http://www.drugpolicy.org/issues/reforming-marijuana-laws

NORML
https://norml.org/laws

Print & eBooks available at Social Law:

Marijuana regulation [e-book] 2019 edition. / Karin D. Jones, James M. ShoreJones, Karin D.
EBOOKS | LexisNexis | 2018 | 2019 edition.
http://encore.socialaw.com/iii/encore/record/C__Rb1149592

Cannabis & hemp : the law & business 6 months later / chair, Adam D. Fine, Esq. ; faculty, Jessica H. Burgess, Esq. and 5 others
PRINT | MCLE New England | 2018
Available at 5th floor MCLE (Call number: KFM2774.5.M3 C36 2018)
http://encore.socialaw.com/iii/encore/record/C__Rb1149808

Legal guide to the business of marijuana / by James T. O'Reilly
O'Reilly, James T., 1947-
PRINT | Practising Law Institute | 2018 | 2018 Edition.
Available at 4th floor Reading Room (Call number: KF3891.M2 O834 2018 2018)
http://encore.socialaw.com/iii/encore/record/C__Rb1146064

The law & business of marijuana dispensaries / chair, Adam D. Fine, Esq. ; faculty, Katharine I. Doyle, Esq., Michael H. Dundas, Esq., Mitzi S. Hollenbeck, CPA, CFE, Valerio G. Romano, Esq., Shaleen Title, Esq
PRINT | MCLE New England | 2018
Available at 5th floor MCLE (Call number: KFM2774.5.M3 L39 2018)
http://encore.socialaw.com/iii/encore/record/C__Rb1145945

The impact of recent marijuana laws on public law / sponsored by Public Law Section Council
PRINT | Massachusetts Bar Association | 2018
Available at 5th floor States (Call number: KFM2774.5.M3 I47 2018)
http://encore.socialaw.com/iii/encore/record/C__Rb1146092

Recreational marijuana business law in Massachusetts / [authors, Kevin C. Conroy and 4 others]
PRINT | National Business Institute | 2018
Available at 5th floor States (Call number: KFM2774.5.M3 R43 2018)
http://encore.socialaw.com/iii/encore/record/C__Rb1149146

Marijuana business law in Massachusetts / authors, Patrick T. Donovan, Adam Fine, Jeffrey Gard, Thomas Lesser, Valerio Romano
PRINT | NBI, Inc. | 2018
Available at 5th floor States (Call number: KFM2774.5.M3 M37 2018)
http://encore.socialaw.com/iii/encore/record/C__Rb1149496

Update on the new marijuana law : the SJC's decision in Barbuto and its impact on the use of medical marijuana by employees / sponsored by Labor & Employment
PRINT | Massachusetts Bar Association | 2017
Available at 5th floor States (Call number: KFM2774.5.M3 N492 2017)
http://encore.socialaw.com/iii/encore/record/C__Rb1146127

Legalizing marijuana : a shift in policies across America / edited by Nancy E. Marion, Joshua B. Hill
PRINT | Carolina Academic Press | 2016
Available at 4th floor Reading Room (Call number: HV5825 .L436 2016)
http://encore.socialaw.com/iii/encore/record/C__Rb1144079

Marijuana legalization : what everyone needs to know / Jonathan P. Caulkins, Beau Kilmer, and Mark A.R. Kleiman
Caulkins, Jonathan P. (Jonathan Paul), 1965-
PRINT | Oxford University Press | 2016 | Second edition.
Available at 4th floor Reading Room (Call number: HV5822.M3 M37 2016)
http://encore.socialaw.com/iii/encore/record/C__Rb1146134