Lots of review and price comparison sites use contextual advertising. This is where a sites adverts adjust themselves based on page content. So if you have a page about the latest netbook or smart phone, the adverts there will should only display that kind of product.
I made a tool to help with contextual targeting for eBay Partner Network affiliates. Click on the screen shot above and take a look. For anyone who didnt know, eBay is split up into different geographic territories. Each has its own ID and list of categories (category tree). Also each uses that areas language: ebay.fr is in French, ebay.nl is in Dutch and so on!
I’ve collected ALL of this data and made it available as an Excel 2003 spreadsheet.
All non-english categories have a translation. Everything is updated every Friday.
More info: http://ebay.cgmlab.co.uk/tool-categorytree.php
More eBay tools from R.O.EYE: http://ebay.cgmlab.co.uk/
EPN blog post: http://www.ebaypartnernetworkblog.com/en/news/r-o-eye-develop-international-ebay-category-tree-resource/
R.O.EYE blog post: http://www.ro-eye.co.uk/blog/2010/08/international-ebay-category-tree-resource/
Contact me for help with the API call, Python code or other formats.

Pingback: eBay categories
Thanks a lot! A real time saver for me
I just downloaded your category spreadsheet, very useful, Cheers dude!!
many thanks~ very useful data! lol
Awesome Info! Your time and effort is very much appreciated!!
Thank you very much, this will help me in the localization of a website that belongs to an eBay affiliate.
Thanks for this. Having the country tabs/categories is awesome.
Cheers, happy to help
That is absolutely awesome thanks dude, i will pass on to your URL to my fellow Mage’ers who will find this really too.
Many thanks
Roger
hey!!
Nice List
DO you have one for india / ebay if not can you make one
thanks
I’ll check if India data is available in the API. If it is then I will definitely add it to the map. Coming very soon!
thanks so much!!!
Hi
It saved my lot of time.
Thanks a lot.
Vaseem
Cheers!
This is awesome!
Thanks heaps!
Hey, this data can be used freely in a web site? thanks!
YES! everything on this website is totally free for anyone to use. A link back to alexharvey.eu would be nice
but I don’t mind.
Thank!! This is very useful. I’m thinking on importing to a DB using ‘modified preorder tree traversal’ algorithm. Very helpful and saved me a bunch of time.
BTW, do you know where I can also get eBay Motors Categories? Thanks!
This post is getting a bit old. I’ll try to get the Motors data and then make a new uber post with everything! What’s your database going to be used for? Cool projects are cool
thank you so much!!
Pingback: Benchmarking your web traffic | distilled
Excellent, very useful file!
thank you!
Is this file still being updated? Today (October 3, 2012): Jewelry & Watches – Fine Jewelry appears as category #4196 in this Excel file for eBay US, but appears as #166298 on eBay. Please advise. Thank you.
Yep, should be every Friday. If you think its wrong then feel free to email alex.harvey@roeye.com or Skype me alex.harvey.roeye. Cheers!
Please send me the excel sheet containing the ebay india category with id. Thanks in advance
Hi, tks for share!
may you help me to get this list via api with php?
emailed!
Pingback: How eBay categories are organised | Alex Harvey
Hello! Sorry for my bad language. I want to get all categories using php. I didn’t find good examples but found your blog. May be you could help me? Please contact me at email.
Wrote this, hope it helps – http://alexharvey.eu/code/php/get-all-ebay-categories-in-php/