Community Supported Agriculture is sprouting up in many cities - over 100 groups are offering vegetable shares in NYC this year, up from 70 last year. Most are run on a volunteer basis.

CSAmazing is a hosted web management system for CSAs, taking care of the most common tasks, including payment, registration and volunteer coordination.With CSAmazing, volunteers spend less time working on admin, have an easier time delegating and can help the CSA group grow together as a community.

Common CSA tasks managed by CSAmazing include:

  • easy sign-up for new members, including waiting lists once all slots are taken
  • flexible payment options - thanks to generous support from non-profit food organizations in NYC, online payments via CSAmazing have no fees.
  • cost calculators allow CSA organizers to forecast income and costs over the season, and share this info with the farmer
  • email and social messaging tools to communicate with members and other CSA volunteers
  • volunteer shift management - flexible re-scheduling, reminders and nagging emails make the process of staffing the CS pick-ups very smooth
  • farmer communication, including details of vegetables each week
  • tools to share data with other CSA organizers, to support local food efforts and build on experiences from other schemes
  • a flexible, modular system, with optional extras including recipe databases, photo sharing and community food mapping

Getting a CSAmazing portal is simply a matter of registering with the main CSAmazing site, and filling out some info about the CSA. A custom domain is automatically set up, like this: crownheights.csamazing.org. With some simple customization though the admin interface, costs, shift times and other essential info can be entered.

Development of CSAmazing is open source, with a tiny team of developers supported by small contributions from participating CSAs and generous assistance from food-related foundations. Using a hosted solution means that backups, upgrades and security updates are taken care of. And since the underlying system beneath CSAmazing is a widely-used content management system and database, the foundations are solid.

The site is optimized to be undemanding. It runs smoothly on mobile devices and also older hardware and older browsers - helping CSAs reach a wide audience across the spectrum. The mobile version of the site even allows volunteer coordinators to check off shifts and edit schedules directly at the pick-up location.

Do you run a CSA? Say goodbye to miscellaneous google docs, long email chains and binders of volunteer shift coordination - sign up for CSAmazing today.


Introducing View Finder, a web tool for evaluating the visual impact of new transmission corridors.

Placing power transmission lines across the landscape is a necessary to transmit energy from source to destination. Until we get a breakthrough in efficiency, distributed and localized generation, new transmission corridors will be needed.

Choosing where to put corridors is contentious and drawn-out - for example, see the well-documented campaign against new corridors in Virginia run by the Piedmont Environmental Council. Reviews take a long time, and require data, expert analysis, public and stakeholder consultation. What if new tools could help make the processes more effective?

Here are two such tools:

  • View Finder. A visibility analysis for the entire US, running in your browser. Discussed below.
  • Path Finder. A collaborative platform for contributing, assessing and commenting on corridor options.

These two tools alone don’t resolve all the challenges around corridor placement, but they represent small building blocks towards more inclusive and open processes.

What is View Finder?

View Finder uses freely-available datasets to calculate what can be seen from a particular location. While detailed viewshed analysis is expensive and slow, View Finder provides a rough sketch of the same information in seconds, right in your web browser.

From your browser, click a point on a map, or draw a path to represent a transmission corridor (shown green in the screenshot below). View Finder overlays two colors: blue, showing locations that can’t see the point or corridor, and pink for locations that can.

Pre-set options relevant to transmission corridors allow you to specify the height of the pylons. Taller corridor infrastructure increases the size of the possible viewing area.

Vegetation cover data are used to calculate summer and winter views, where the corridor is located in or near a deciduous forest.

The ground cover also affects how likely you are to see the corridor from each location - forest gets in the way more than scrubland, for example.

After tweaking the settings, share, save or print the viewshed.

Behind the scenes, View Finder uses the National Elevation Dataset, and the National Land Cover Dataset. Both are stored in Amazon Elastic Block Storage, and called as needed by a GRASS GIS script running in Amazon Elastic Cloud Compute to calculate the visibility for the current location. Map tiles showing the view shed are generated on the fly by Mapnik and stored for re-use.

View Finder is an integral part of Path Finder - to be covered in a follow-up post.