The Alpheios tools are currently the best tool for reading Greek texts online independent of any specific site (Which means that you are looking at a Greek text in a web browser's window). The Alpheios Tools allows an online reader to access a site such as biblegateway.com (http://www.biblegateway.com/passage/?search=Jn+3&version=SBLGNT
) and have the ability to click on any word and get the (1) parsing, (2) inflection / declension, and (3) definition of the word in question. Alpheios will not pick the exact form if a hit returns multiple parsings or lemmata, but it lets the reader see all the possible entries in a very compact usable way.
Alpheios Tools are independent of any site. And provide the resources of the LSJ lexicons (full and Middle), Abbott-Smith (in a new or upcoming version), along with some Homeric lexicons (Hopefully also in the next few years Sophocles' Lexicon). If anyone has a page of Greek (unicode) text open in a browser, you simply turn the Alpheios tools 'On' and select 'Greek'. Then when you are reading a text, and need to query a Greek word's form, declension, lexeme, etc. You click on a the Greek word, and a floating window pops up. The floating window has some lexical entries, and also a declension/paradigm utility.
To install the Alpheios tools, you need to go to http://alpheios.net/content/installation
. Then select to install the 'Greek and Latin Tools.' (Select 'Allow' if your Firefox browser or other browser has a security pop-up window.) You may also get a pop-up window asking to allow the installations of the extensions into the Firefox browser. (Alpheios tools are currently being ported so the work in other browsers such as Chrome, Internet Explorer, Opera, ktl.) To select the dictionary for which you want to have preference, you go (in the Firefox browser) to Tools>Add-ons>Alpheios Greek Tools > Options>Dictionaries.
Other sites and tools give access to the NT texts and also give helps to reading; these can also be aided by Alpheios tools (in some cases you may have to have the double-click pop-up behavior of Alpheios change to another action). Such sites are
(1) Laparola.net/greco (Only NT texts)
(2) Perseus.tufts.edu/ (But every click pops open a new window, not a floating window) (Perseus is a sponsor of Alpheios)
(3) TLG (Thesaurus Linguae Graecae) (some free access, most a paid access). Try this link to Plato's Critias http://www.tlg.uci.edu/demo/browser?uid=0&lang=eng&work=59003&rawescs=N&betalink=Y&filepos=0&outline=N&GreekFont=Unicode_All&
, then use the Alpheios tools for reading. The free TLG corpus is a little tricky to find. Here is a list of authors and works: http://www.tlg.uci.edu/demoinfo/demoauthors.php
(4) Katabiblion (LXX - OT) Try reading Genesis 20 http://en.katabiblon.com/us/index.php?text=LXX&book=Gn&ch=20&interlin=on
(5) The German Bible Society's online texts: http://www.academic-bible.com/en/online-bibles/about-the-online-bibles/
(6) The Greek text converter at Katabiblon.com (Go to http://www.katabiblon.com/tools/perseus-hopperizer/index.php
, paste in some Greek unicode text, select 'Link only', and make sure you turn Alpheios tools on. This is a really nice reader interface.
But I don't want to take this thread off of the discussion of corpus-based language study, and any discussion of the Alpheios toolset should (including this post), should perhaps be moved to a separate thread.