New Jersey Agricultural Weed Gallery
- Includes brief details, and photographs of the important weeds of NE United States.
- http://njaes.rutgers.edu/weeds/

HDRA Organic Weed Management
- This project aims to be a primary resource on weed management for organic farms, reporting on the latest weed information, weeding techniques and weed research.
- http://www.gardenorganic.org.uk/organicweeds/

A Review of Non-Chemical Weed Management
- Organic farmers cite weed control as the most significant problem they encounter. This article discusses possible solutions in depth.
- http://www.gardenorganic.org.uk/organicweeds/downloads/updated_review.pdf

Pacific North West Weed Management Handbook
- Information on dealing with weeds found in this region including a weed identification image collection.
- http://weeds.ippc.orst.edu/pnw/weeds

Weeds Management
- Comprehensive information on Australian weeds with guides to identification and control.
- http://www.agric.nsw.gov.au/reader/weeds

Management of Problematic Aquatic Weeds in Africa
- Comprehensive information from the FAO on this subject with particular reference to water hyacinth, water lettuce and water fern.
- http://www.fao.org/DOCREP/006/Y4270E/Y4270E00.HTM

Weed Management for Developing Countries
- Comprehensive information from the FAO on improved weed management, problem weeds in crop and non-crop situations and management options and perspectives.
- http://www.fao.org/DOCREP/006/Y5031E/Y5031E00.HTM

Procedures for Weed Risk Assessment
- Information from the FAO on what should be done prior to the importation of plants to evaluate the likelihood of them becoming nuisance weeds.
- ftp://ftp.fao.org/docrep/fao/009/y5885e/y5885e00.pdf

Flame Weeding for Agronomic Crops
- Article discussing the use of flame weeders to control weeds before or after germination of the crop.
- http://attra.ncat.org/attra-pub/flameweed.html

Principles of Sustainable Weed Management for Croplands
- Article discussing several alternatives to conventional tillage systems, including allelopathy, intercropping, crop rotations and a weed-free cropping design.
- http://attra.ncat.org/attra-pub/weed.html

Identification of Vine Weeds in Florida Citrus
- Photographs and identifying features of the commonly occurring climbing weeds.
- http://edis.ifas.ufl.edu/HS185

Turf Weed Identification
- Photographs of weed species that may invade grassland and information on herbicides from Bayer Environmental Science.
- http://www.bayer-escience.co.uk/turf_weeds.htm

Amenity Weed Identification
- Photographs of weed species commonly found in the UK and information on herbicides from Bayer Environmental Science.
- http://www.bayer-escience.co.uk/amenity_weeds.htm

Weed Science Society of America
- Publishers of Weed Technology, which includes original research on weed biology and control, weed and crop management systems and reports of new problems.
- http://www.wssa.net/WSSA/Jobs/

UNL Weedscience
- This University of Nebraska program conducts research into herbicides and weed types. Page includes list of publications and news.
- http://weedscience.unl.edu/

Noxious Weeds in the US and Canada
- Searchable database of the noxious weed lists for all U.S. states and six southern provinces of Canada.
- http://invader.dbs.umt.edu/Noxious_Weeds/

Weeds Society of Western Australia
- Includes scientists, consultants, company representatives, conservationists, other practitioners and members of the public who have an interest in weed management
- http://members.iinet.net.au/~weeds/

Iowa State Weed Science
- Detailed information and articles covering all aspects of agricultural weed science.
- http://www.weeds.iastate.edu/

Virginia Tech Weed Identification Guide
- Images and descriptions of many species of terrestrial and aquatic weeds in Virginia.
- http://www.ppws.vt.edu/weedindex.htm

Weed Identification
- Key and species accounts for 172 species from the University of Illinois.
- http://web.aces.uiuc.edu/weedid/

International Survey of Herbicide Resistant Weeds
- Information about weeds and their identification, control and herbicide resistance. A global collaborative effort.
- http://www.weedscience.com

National Weeds Strategy - Weeds of National Significance
- Australian site promoting key weed policies, regulations, current issues, national initiatives, research, extension training and personnel.
- http://www.weeds.org.au/natsig.htm

King County Noxious Weed List
- Weed identification in Washington State, USA.
- http://dnr.metrokc.gov/wlr/lands/weeds/weedid.htm

Environmental Weeds in Australia
- Brief introduction to some major environmental weeds in Australia, with photos.
- http://www.anbg.gov.au/weeds/weeds.html

Environmental Weeds Action Network (EWAN)
- A community initiative to tackle the problem of environmental weeds in bushland and waterways in Australia.
- http://members.iinet.net.au/~ewan/

California Noxious Weed Control Projects Inventory
- A combined government/private/non-profit endeavour to establish a database, accessible through the Internet, containing information on noxious weed control in California.
- http://endeavor.des.ucdavis.edu/weeds/

Integrated Weed Control
- Biological products and consulting services for weed management. Montana.
- http://www.integratedweedcontrol.com/index.htm

Weed Research and Information Center
- An interdisciplinary collaboration that fosters research in Weed Management and facilitates distribution of associated knowledge for the benefit of agriculture and for the preservation of natural resources.
- http://wric.ucdavis.edu/

International Parthenium Research News Group
- Resources on this noxious weed for scientists and researchers. Includes a news group, picture gallery, scientists directory, references and links.
- http://www.iprng.org/