John S. Rhodes has started a new site for trading stuff called Trodo. Here's how it works:

Trodo members use credits to request items from each other. If you want a CD from another Trodo member, you need to have a CD credit. If you want a DVD, you need a DVD credit, and so forth. When you make a request, the other member will ship that item to you for free. In turn, when Trodo members ask you for items using their credits, you ship them for free. They ship for free, you ship for free. They use credits, you use credits.

Nice! This is an idea that I've been thinking about for a discussion group I belong to. I looked around for an app that does this sort of thing -- sort of like a book circulation tool -- but didn't find anything. Without even invoking the LazyWeb, a tool that I want appears. :) Anyway, I'm going to start posting computer and design books up there.

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Get rid of a computer book are you insane? I still have the books from my ZX Spectrum


Thank you!

I just want to say thanks for posting a link to Trodo. It really helps. As the site grows, all members benefit because of a network effect.

If anyone is really curious about how Trodo works and how it compares to both traditional barter or eBay, take a look at this article that I posted.

Finally, if anyone is interested in the usability and information architecture issues of Trodo, or if you have questions, or if you want to interview me, fire away!

John S. Rhodes

Industrial Strength Usability

Trade it on Trodo!

The concept is great. I poste

The concept is great. I posted 3 books and 2 cds yesterday morning. Within an hour, 2 of the books were requested and I sent them off by postal mail in the afternoon. It's a great way to connect people to trade things. There are some improvements that I've thought needed to be made after my first day of using. Here are some:

* Login should have a "Remember me" option. Not sure if I actually get forgotten and have to re-log in on the front page, but if I'm logged in, the front page should say, "Welcome, jibbajabba" or something to let me know I'm logged in and should remove the log in form.

* Some kind of alerting is needed. Either email alerts (perhaps by category) and/or RSS. I don't want to have to check each category every day. In fact, I don't want to have to visit the site every day to see if there's new stuff. I want minimal interaction.

* The option to see a list of requested items with a link to user who requested them in case I can't get to the email where the notification was sent. Perhaps the notification email you get when someone requests an item should send you back to Trodo so you can optionally notify them via a web-based email form that will have the appropriate question, like "I received your request, please forward your postal information to me." Or something.

* What about ISBN field that you can use to automagically link book entries to some book catalog or Amazon and to link movies to That would help so people wouldn't have to enter so much description about the content of a book or cd and would allow them to talk about condition, etc.

That's all I can think of for now. I've been pondering the categories, but haven't quite processed them yet. One thing that sticks out for me is that format might be sensible. Poetry, for example, might be a good one to list. This might be a good case where facets would help (in books and music anyway). Subject, format, author, etc. A more fielded approach to entering information would be required however. Not sure if that would turn people away or not.