Short directory explaination

This list should give any new developer a kickstart in where to find code that they wish to modify.

Also nice for old developers with weak memory :)

Directory	Description
apps	This directory contains applications and clients that ships with i2p.
apps/addressbook	Some headless code for addressbook management.
apps/apparmor	Ruleset for AppArmor.
apps/BOB	Code for the BOB service.
apps/desktopgui	The new system tray application
apps/i2psnark	Code for i2psnark, the torrent client component in webconsole.
apps/i2ptunnel	Code for the Hidden Service Manager, and its GUI in webconsole.
apps/imagegen	The image generator webapp
apps/jetty	Jetty webserver code.
apps/jrobin	Graph package for the console
apps/ministreaming	The streaming (TCP-like socket) interface.
apps/routerconsole	The router console code.
apps/routerconsole/java/src/net/i2p/router/news	The news feed subsystem
apps/routerconsole/java/src/net/i2p/router/update	The automatic update subsystem
apps/routerconsole/java/src/net/i2p/router/web	Java code for the console, including plugin support
apps/routerconsole/jsp	Jsps for the console
apps/sam	SAM service.
apps/streaming	The streaming (TCP-like socket) implementation.
apps/susidns	Code for the addressbook component in the webconsole.
apps/susimail	Code for the mail client component in the webconsole.
apps/systray	The old system tray application, now removed, and some related utilities
installer	This directory contains the code for the installer.
installer/lib/izpack	Installer libraries
installer/lib/jbigi	jbigi and jcpuid DLLs
installer/lib/launch4j	Windows jar-to-exe binary
installer/lib/wrapper	Wrapper binaries and libraries
installer/resources	Used for static files that are packed with i2p.
core/java	Common core code used both by the rotuer and apps.
core/java/src/net/i2p/app	Code for app interface.
core/java/src/net/i2p/client	Low-level client I2CP interface (I2PClient, I2PSession etc.).
core/java/src/net/i2p/client/impl	Client-side I2CP implementation
core/java/src/net/i2p/client/naming	Addressbook interfaces and base implementation
core/java/src/net/i2p/crypto	This directory contain most of the crypto code.
core/java/src/net/i2p/data	Common data structures and data-related utilities
core/java/src/net/i2p/internal	Internal socketless I2CP connections
core/java/src/net/i2p/kademlia	Base Kademlia implementation used by the router and i2psnark
core/java/src/net/i2p/socks	SOCKS client implementation.
core/java/src/net/i2p/stat	Statistics subsystem.
core/java/src/net/i2p/time	Internal time representation
core/java/src/net/i2p/update	Parts of the update code.
core/java/src/net/i2p/util	Utillity code like Log, FileUtil, EepGet, HexDump, and so on.
router/java	This directory contains the I2P router code.
router/java/src/net/i2p/data/i2np	I2NP code, the inner protocol for I2P.
router/java/src/net/i2p/data/router	Router data structures such as RouterInfo
router/java/src/net/i2p/router/client	Router-side I2CP implementation
router/java/src/net/i2p/router/crypto	Router crypto not needed in the core library
router/java/src/net/i2p/router/dummy	Dummy implementation of some subsystems for testing
router/java/src/net/i2p/router/message	Garlic message creation and parsing
router/java/src/net/i2p/router/networkdb/kademlia	The DHT (kademlia) code.
router/java/src/net/i2p/router/networkdb/reseed	The reseed code.
router/java/src/net/i2p/router/peermanager	Peer profile tracking and storage
router/java/src/net/i2p/router/startup	Code related to the startup sequence.
router/java/src/net/i2p/router/transport	Transport implementation code (NTCP, SSU).
router/java/src/net/i2p/router/transport/crypto	Transport crypto (DH)
router/java/src/net/i2p/router/tasks	Small router helpers, run periodically
router/java/src/net/i2p/router/tunnel	Tunnel implementation code.
router/java/src/net/i2p/router/util	Router utilities