Σφίγξ Classical Grammar Drill – Greek and Latin
LP Ancient Greek – parsing and vocabulary for Homeric, Classical, and New Testament Greek
First One-Thousand Years of Greek Project – The goal of this project is to collect at least one edition of every Greek work composed between Homer and 250 CE with a focus on texts that do not already exist in the Perseus Digital Library.
Dickinson College Commentaries – Latin and Greek texts for reading, with explanatory notes, interpretive essays, vocabulary, and multimedia elements. The format has two columns, one with plain text on the left, and another on the right with three tabs for notes, vocabulary, and media. The commentaries are peer-reviewed, citable scholarly resources, licensed under a Creative Commons Attribution-ShareAlike License.
LXX_WH – Septuagint LXX Greek OT & Westcott-Hort Greek NT with NA26/27 variants – “Septuagint LXX Greek Old Testament keyed to Strong’s numbers with complete parsing information, and Wescott and Hort 1881 Greek New Testament with NA26/27 variants keyed to Strong’s numbers with complete parsing information.”
NET Bible – NET and many other English translations. Greek and Hebrew with mouse over. Also includes NET translators’ notes.
academic-bible.com – The Scholarly Bible Portal of the German Bible Society
THGNT at ESV.org – So far from what I’ve read, this is not a heretical text (which the SBLGNT unfortunately is. See for example John 1:3).
A digital Reader’s Edition of the SBL Greek New Testament – Android app.
Master Greek – Biblical Greek (Koine Greek) parsing practice for all different parts of speech, not just verbs.
The Interactive Greek and Hebrew Bible – parsing practice
Greek Verb Parsing – Only verbs. Options are for Machen, Voelz, and NA28.
Supplementum Epigraphicum Graecum – Wikipedia: “covers the entire Greek world, although material later than the 8th century A.D. is not included.”
Inscriptiones Christianae Graecae – A database of early Christian inscriptions from Asia Minor and Greece.
TCG: An Online Textual Commentary on the Greek Gospels – Wieland Willker
A Student’s Guide to New Testament Textual Variants – Ralph Bruce Terry
Text Excavation -Links to numerous ancient texts in the original languages.