O

official auction time, eBay, 210–211

online auction. See eBay API

online payments. See PayPal API

online store. See Amazon API; Buy It Now, eBay

online stores. See eBay Stores Inventory

Open Directory Project, 119

opening and closing tags, XML, 12–13

OpenSSL

dependencies, building development system, 337

phpinfo() development system, 335

Order Management Integration Guide (PayPal), 249

output

Amazon, multiple versus single page, 161–162

Del.icio.us API, 280

Google

NuSOAP script, 122–123

simple search, 126–127

Tidy, forcing, 52