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Istvan Siposs Yahoo! Store Developer

  I have been developing Yahoo! Stores since 1999. I have been a Yahoo Store designer/developer registered with Yahoo's Store Designer Referral Program since 1999. I wrote the first book, a comprehensive guide, on Yahoo! Store's proprietary template language, RTML.

Operating an online store on Yahoo! has many advantages over other shopping cart solutions. In fact, a Yahoo! Store is much more than just a "shopping cart"; that is why there are over 40,000 merchants running Yahoo! Stores today. With Yahoo!, you get reliable, fast hosting, complete back-end including credit card processing and detailed statistics, and with a correctly set up store, maintenance is a breeze. With a custom Yahoo! Store design, all you have to do is add your products (either manually or by uploading a simple spreadsheet) and you are ready to go. Contrary to some misconceptions, anything that can be done in pure HTML can also be done in a Yahoo! Store. And by correct coding, your store can be just as search engine-friendly as anyone else's web site. What's more, with Yahoo! Store's template language (RTML), even SEO (search engine optimization) can be automated and streamlined, so that you don't have to waste your time analyzing and tweaking your HTML code.

As a Yahoo! Store merchant, you also get discounts in the largest online shopping portal, Yahoo! Shopping.

If you don't have a Yahoo! Store yet: ... I can assist you in setting it up and designing your online store to your specifications.

Once your store is up and running, I can coach you and help you learn how to manage and maintain your store yourself.

If you do have a Yahoo! Store already: ... I can help you make it look more professional and add custom features that are either not provided by the Yahoo! Store software directly or that require special, advanced programming.


While the Yahoo! Store editor package is easy to learn and operate, a truly custom site that stands out of the crowd requires the understanding of Yahoo! Store's proprietary web design language, RTML. By using RTML, it is possible to alter some or all of Yahoo! Store's standard features, create a truly customized navigation bar, change the way your pages are laid out and much more.
If you have a web site hosted by a third party web hosting company or are considering having onee ... I can integrate your two sites and create some very advanced features such as:
  • Custom shipping and tax calculation against your own database and rules
  • Real-time inventory checking and maintenance
  • Online discussion forums
  • Anniversary reminder service
  • Online newsletter
  • Coupon club
  • "E-mail this site to a friend"
  • and more!
  • If you are interested in learning about RTML to set up or modify your own store, visit the " Yahoo! Store Books" page at
  • If you would like to have your store designed, redesigned, or enhanced with custom features, get a detailed quote here.
  • If you have questions or need more information, contact me.