It does not appear that there are very many free Hebrew instructional grammars on the web. (I've paid for my share of Hebrew grammars! I'm just saying, if someone wanted to check it out for free...) The only ones I could find (and these are not necessarily recommendations, but I have *bold-starred ones that look most helpful) are the following.
This textbook is intended for a university classroom. It is divided into thirty lessons, corresponding to the typical thirty-week academic year. Following the sequence of lessons will provide the average student with a cutting-edge understanding of ancient Hebrew grammar and will enable the student to read both prose passages and less complex poems from biblical and non-biblical texts. Additionally, the textbook introduces the student to the standard Biblical Hebrew lexicon [BDB] and includes an appendix on the Masoretic “accents,” which may be incorporated into the sequence of lessons at whatever point the instructor desires.Thank you to Cook and Holmstedt for sharing this resource which looks to be a competent and reliable guide.
Because of the variety of first-year biblical Hebrew textbooks currently available, it is worth briefly noting what this textbook is not: it is not a reference grammar; it is not meant to be used without supplementation from the instructor; it is not meant for self-study; it is not theologically oriented. What this textbook does not do represents fairly well the character of almost every other available textbook, and thereby indicates that there exists a significant lacuna in the world of Hebrew textbooks. This textbook is intended to fill this hole.
Also note some older Hebrew grammar resources that are in the public domain. Check this Google Book list and this Internet Archive list of grammars with full view and especially:
The BibleWorks7 addon modules are hosted on the BibleWorks blog and were compiled by Pasquale Amicarelli.
If you know of other resources, please let me
BTW, for an excellent summary of Hebrew grammars, lexicons, readers, etc. available for purchase, check these references on the Codex blog: "Introductory Hebrew Grammars" and then "Mastering Biblical Hebrew." Also check here.
mgvhoffman - 2008.07 - www.scrollandscreen.com