Ecology/Biology 
General 
Plum Island Estuary (PIE) LTER 
Research at the PIE LTER site. 

LMER 
Land Margin Ecosystems Research 

LTER 
LongTerm Ecological
Research 
Numerical
Analysis 
General  Netlib  Huge
archieve of numerical software, mostly Fortran. 
 Mathematical
Software  A good set of hyperlinks to mathematical
software in the public domain. 
 Automatic
Differentiation  Tools to calculate derivatives of
functions from their source code. 
 Genetic Programming  Programming techniques that use the evolution paradigm. 
 Mathematics Information Servers 
A good jumping point to mathematical sites around the world 
 Fortran Market  Fortran stuff. Mostly commercial. 
ODE Analysis 
Bifucation and Nonlinear
Instability Laboratory  Systems analysis stuff. 
 AUTO 
Bifurcation analysis of ODE's 
PDE's, Meshes, etc. 
Internet
Finite Element Resources 
A very good site on finite
elements and related techniques. Links to both commercial and public domain
code. 
 PETSc 
The Portable, Extensible Toolkit for Scientific Computation. A very nice package (understatement) for the numerical solution of PDE's. 
 //ELLPACK 
A cool package for solving eliptical PDE's using parallel
computation. Don't know if it has been released yet. 
 Diffpack  Another cool package to solve PDE's using c++. Public domain. 
 LUGR  Fortran routines to solved general PDE's in 2D and 3D. Public
domain. 
 MGNet  Summary of work in multigrid methods. 
Optimization  Decision Tree for
Optimization Software  List many different type of
optimization software (mostly Fortran). 
 NEOS Guide:
Optimization Software  Links to many different types of
optimization software, both public domain and commercial. 
 Global Optimzation  A
good site to global optimzation work. 
Hydrodynamic Models 
Coastal Ocean Modeling at the USGS 
Rich Signell's modeling page. Has several anaimated movies of
Boston Harbor and Massachusetts Bays hydrodyanmics. Very nice. 
 Gulf of Maine  Modeling work that is being conducted in the Gulf of Maine. 

Princeton Ocean Model 
A widely used public domain ocean model. (Must contact authors to
use). 
Data Assimilation 
DAO NASA 
Data Assimilation Office, NASA. Use of data assimilation mostly for improving GCM model prediction. 
