This project was initially funded by the Irish Higher Education Authority's Programme for Research in Third-level Institutions, Cycles 2, 3 and 4 from 2000-2005, and from 2007-2010. Since then, the database has been funded mostly from private funds, kindly provided by Professor J.A. West and Dr P.W. Gabrielson, and by sponsorship. The Ryan Institute and the National University of Ireland, Galway and Galway University Foundation have also contributed extensively with funding, facilities and communications.

We are particularly grateful to the numerous people who have helped us in this endeavour or contacted us with moral support, pictures, information, corrections, comments and suggestions including:

Dr O. Anisimova (Russia), Dr A. Athanasiadis (Sweden, Greece), Dr R.A. Andersen (USA), Dr R.J. Anderson (South Africa), Prof. D.L. Ballantine (Puerto Rico), Dr I. Bárbara (Spain), Dr R. Barrone (Italy), Prof. J.J. Bolton (South Africa), Dr J. Brodie (UK), Mr F. Bunker (UK), Mr K. Bruun (USA), Prof. B.B. Chaugule (India), Dr Youxin Chen (China), Dr N. Chomérat (France), Professor M. Cormaci (Italy), Dr R.A. Cowan (Australia), Dr A.T. Critchley (Canada), Mr C. Carter (UK), Mr W. da Silva, Dr D.A. Davydov (Ukraine), Dr B. De Reviers (France), Dr A.B. Doweld (Russia), Dr R. Dumilag (The Philippines), Dr A. Emmerling-Skala (Germany), Prof. T.J. Entwisle (Australia), Dr T. Fairbanks (USA), Dr Duarte Frade (Spain), Dr R. Froese (Germany), Prof. G. Furnari (Italy), Dr K. Gandhi (USA), Prof. D.J. Garbary (Canada), Dr R. Gogorev (Russia), Dr T. Gregor (Germany), J. Grosse (Canada), Dr S. Heesch (Germany), Dr J.M. Huisman (Australia), Mrs L.M. Irvine (UK), Dr D.M. John (UK), Dr D.A. Kapustin, Dr A. Kenins (Australia), Dr B. Kennedy (Ireland) Dr and Mrs G.T. Kraft (Tasmania), Prof. F. Kuepper (UK), Dr T. Lassens (Belgium), Dr P.W. Lebednik (USA), Dr F. Leliaert (Belgium), Dr A. Langangen (Norway), Dr R. Lavigne (Canada), Drs Diane and Mark Littler (USA), Dr C.S. Lobban (Guam), Dr K. Mertens (Belgium), Dr R.L. Moe (USA), Dr M. Morabito (Sicily), Mr O. Morton (Northern Ireland), Dr T. Mikhaylova (Russia), Dr Hassoun Mustapha (Morocco), Dr T. Nakada (Japan), Prof. S. Naz (Bangladesh), Prof. W. Nelson (New Zealand), Dr E.N. Patova (Russia), Dr M. Paul (Germany), Prof. F.F. Pedroche (México), Prof. J.P. Kershi (India), Prof. W.F. Prud'homme van Reine (The Netherlands, deceased), Dr O. Reymond (Switzerland), Dr Surajit Roy (India), Dr R. Searles (USA), Dr C.W. Schneider (USA), Dr I. Shyndanovina (Ukraine), Dr F. Rindi (Italy), Dr F. Rodríguez Hernández (Spain), Mr Luka Sato (USA), Prof. G.W. Saunders (Canada), Dr A. Scharfetter (Austria), Dr E. Serrão (Portugal), Dr S. Shalygin (Russia), Dr F.A.S. Sterrenburg (The Netherlands, deceased), Prof. T.E. Smith (USA), Dr A.-M. Suárez (Cuba), Dr M. van Westen (The Netherlands), Dr T.B. Widdowson (Canada), Prof. Wm. J. Woelkerling (Australia), Dr K. Wolowski (Poland), Dr M.J. Wynne (USA), Prof. Bozena Zakrys (Poland), and Dr A. Zingone (Italy).

We particularly appreciate the generous financial support of Professor J.A. West and Dr P.W. Gabrielson.

Nomenclatural advice and support was provided by Prof. G. Furnari (Università di Catania), Dr K. Gandhi (Harvard), Dr J. McNeill (Royal Botanic Garden, Edinburgh), Dr R.L. Moe (Jephson Harbarium, Berkeley), Dr C.W. Schneider (Trinity College, Hartford, Connecticut), Dr N. Turland (Botanishes Museum, Berlin), Dr Wm. J. Woelkering (La Trobe University, Melbourne), and Dr M.J. Wynne (University Herbarium, University of Michigan).

Quality images were provided by Dr Rob Anderson (South Africa), Prof. Ignacio Bárbara (Spain), Dr Karl Bruun (USA), Chris Carter (UK), Dr John Huisman (Australia), Drs Diane and Mark Littler (USA), Dr Forbes Pettigrew (Spain), Mr Hideo Ohba (Japan), Dr Sergei Shalygin (USA and Russia), and Mr Wendell Wood (USA), amongst others.

Genus descriptions and information on individual genera were provided by:

Dr M.C. Amspoker, Dr I. Bartsch, Dr C. Billard, Prof. J.J. Bolton, Dr B. Booth, Dr M. Buchheim, Prof. R.L. Chapman, Prof. M. Chihara, Prof. M.N. Clayton, Dr A. Comas, Prof. P. Compère, Prof. E. Coppejans, Prof. A. Couté, Dr D.B. Czarnecki, Åsa Dalsätt, Dr T.R. Deason, Dr G.E. Dillard, Dr S.C. Ducker (deceased), Dr M. Elbrächter, Prof. T.J. Entwisle, Dr E. Firpo, Dr V. Fletchner, Dr I.M. Franceschini, Prof. T. Friedl, Prof. D.J. Garbary, Dr J.F. Gerrath, Dr L.E. Graham, Prof. P. Hargraves, Dr T. Harper, Dr M.W. Hawkes, Prof. E. Hegewald, Dr E.C. Henry, Dr D.R.A. Hill, Dr L. Hillis, Dr F. Hindák, Dr L.R. Hoffman, Dr R.W. Hoshaw, Dr J.M. Huisman, Dr I. Izaguirre, Dr H.W. Joahnsen, Dr J.R. Johansen, Dr S. Jónsson, Dr T. Kalina, Prof. H. Kawai, Dr A. Kenins, Prof. R.J. King, Prof. J. Komárek, Dr G.T. Kraft, Dr J. Kristiansen, Dr P. Kugrens (deceased), M. Robert Lavigne, Dr G.F. Leedale, Dr C. Cardinal-Legrand, Dr J.A. Lewis, Dr T. Leya, Dr L.B. Liddle, Dr S.C. Lindstrom, Dr G.M. Lokhorst, Dr R.M. McCourt, Dr R.L. Moe, Prof. Ø. Moestrup, Dr R. Nielsen, Dr R.E. Norris, Dr H. Nozaki, Prof. J.L. Olsen, Dr P.M. Pedersen (deceased), Dr A.F. Peters, Dr J.A. Philips, Dr H. Pizarro, Prof. H.R. Preisig, Dr C.M. Pueschel, Dr M. Puncochárová Dr K. Renzaglia, Dr O.L. Reymond, Dr C. Sancetta, Prof. B. Santelices, Dr C.W. Schneider, Dr R.B. Searles, Dr R.G. Sheath, Dr P.C. Silva, Dr G.R. South, Dr H. Stegenga, Dr M.J. Sullivan, Dr C. Tanner, Dr G. Tell, Dr Y. Thérézien, Dr J. Throndsen, Dr T.B. Widdowson, Prof. Wm. J. Woelkerling, and Dr E.M. Wollaston (deceased).

Currently in AlgaeBase: