Authors of TUGboat articles retain copyright to their own work, and thus it is their right to use their articles as they see fit, e.g., to their own web site, or on CTAN, or to publish with another journal, under any license they wish. If you wish to include a license notice in the article as published in TUGboat, that's fine.
Submission of a new manuscript to TUGboat implies permission to publish the article, if accepted, on the TUG web site, as well as in print. If you have any reservations about posting online, please notify the editors at the time of submission.
Submission of new material to be presented at a TUG conference also implies permission to publish as a preprint in the TUG conference program and online, as well as in the proceedings.
Ordinarily, we include authors' email addresses and physical addresses, as specified in the manuscript, for both the print and online versions. We slightly obfuscate email addresses for online posting. If you have concerns along these lines, please let us know.
As of fall 2023, submission also implies permission to be indexed in the EBSCO (a large subscription management company) databases. We made this agreement with EBSCO to provide visibility to TUGboat articles in this different venue. TUG will (most likely) receive no royalties from this; EBSCO will probably make some money via aggregation of all their journals, advertising, etc. EBSCO is not permitted to sublicense TUGboat work to anyone.
Please contact us with any questions, concerns, or requests.