There are many guides to EU Law on the Internet. Current EU legislation can be found via EurLex (for treaties, secondary legislation, and more). Parliamentary information including debates, reports, and hearings is on the European Parliament site. Case law can be found via Curia. More detailed information is listed below.
EurLex. Primary database for EU legislation: use this first for EU Primary, Secondary. and Prepatory Legislation. Searching is not easy: try the advanced search and limit to the body in question if known. Many features are available including.
Legislative Observatory (OEIL). Database for monitoring the EU decision-making process.
The Official Journal (OJ) is the official gazette of the European Communities. It contains the texts of secondary legislation, draft legislation and official announcements from Community institutions. It is published in two sections: Legislation (L series) and Information and Notices (C series).
Legislation (L Series)
This series contains the texts of all secondary legislation.
Information and Notices (C Series)
Each issue is divided into three sections:
Supplement to the Official Journal
The Supplement contains details of contracts for tender in the European Community. It is available on the TED (Tenders Electronic Daily) web site.
Working documents of the Commission (COM Documents)
These documents contain:
References are abbreviated "COM" followed by year and number. Since 2003 they have been published on Eur-Lex as Preparatory documents.
Treaties are the European Union’s primary legislation, comparable to constitutional law in many countries. They establish the fundamental features of the Union, in particular the responsibilities of decision-making bodies and legislative procedures. Treaties are negotiated between representatives of member states but must be be ratified, either by national parliaments or via citizen referendum.
European Parliament. Members of parliament are directly elected by EU citizens. Together with the Council, it comprises the legislative branch of the EU. Members of the European Parliament sit in political groups irrespective of nationality.
Archives. Archives of Parliamentary documents for previous terms.