One of the great things about Hellenism is that so much solid information about it has survived the millennia. We can read epic tales by ancient poets, songs of heroes and hymns to the gods, the observations of some of the first historians, and a great deal more.
Thanks to the Tufts University's Perseus Digital Library, many ancient texts (not just Greek and Roman, either) have already been preserved in searchable digital format, along with modern collections of photographs, commentaries, and other treasure. Although many Hellenes share a passion for books, the texts at Perseus are an invaluable trove of searchable texts in both modern and ancient languages, freely usable by the on-line public.
I believe almost anyone can find some joy in Perseus, whether in examination of collections of ancient coins, learning about Hellenic architecture, finding the heart stirred by time-honored hymns, or the sheer exhilaration of research (and if you don't know what that means, I can only hope you find out for yourself). May this page enhance your enjoyment and learning process.
Your first of many options with Perseus is whether to view the site graphically or as a text-only site. If you are browsing the site from a text-only web browser, I would recommend the text-only version, but for most, the standard version of the site will be the way to go.
Each of these pages features a link to specifically Greek and Roman materials, labeled Classics (linked here, for your convenience). From this page, you can browse a long list of sources or just search for something you are specifically curious about. On this page, if you use the Search option, you will be limiting your search to Greek, Roman, and related materials (handy, since the site contains so much more).
These are just a taste of the many nifty things you can find at Perseus.
Pausanias, Description of Greece A tremendously useful and readable guide to Classical Greece.
Thomas R. Martin, An Overview of Classical Greek History from Mycenae to Alexander A well-organized presentation of historical background information.
Harry Thurston Peck, Harpers Dictionary of Classical Antiquities (1898) Over a century old, but still very useful and enjoyable.
Perseus Encyclopedia A digital encyclopedia unique to Perseus.
Hercules, Greece's Greatest Hero Several pages on Hercules (or Herakles). This is a great start for those who approach Hellenism having only seen shows like Hercules and Xena on television or the occasional cartoon movie. Read about his acts of heroism, the women in his life, maps of his travels and more.
Homeric Hymns Translated into English.
Hesiod, Theogony Somewhat contemporary to Homer, Hesiod was a Boeotian farmer. This is his telling of how the universe and gods came to be.
Hesiod, Works and Days More myths from Hesiod, along with discussion of how to live a wise and religious life in his day and time.
Plato, Euthyphro In this short dialogue, Plato has Socrates ask: What is piety? Encounter such questions as: Is the holy loved by the gods because it is holy, or is it holy because it is loved by the gods? Few writings in all of history have impacted my own life more dramatically than the early works of Plato, and I highly recommend them.
Aristotle, Nicomachean Ethics A truly invaluable work on ethics and living a good life.
For those who have yet to go through training in a formal research process, you can get by quite well by just knowing that Texts (as used on the Perseus Classics page) generally means Primary Sources, which contrasts with Secondary Sources. A primary source, for our purposes, means an actual ancient piece of writing, and a secondary source can be something written about a primary source. Homer's Iliad is a primary source, but a modern professor writing a commentary about Homer's Iliad is writing a secondary source. (But if a college professor writes a translation of Homer's Iliad, the translation is still a primary source.) Modern history books and websites such as the one you are browsing now can also generally be considered secondary sources. If this paragraph only confused you, ignore it entirely. You really only need to know about this sort of thing in a few college classes.