A

absolute URL, image, 43

Accept header, Google transactions, 114

AccountNumber, 180

Ad Type auction, 205

admin page, blog

simple without security, 75–76

trackbacks, 79–81

adult sites, removing from Google searches, 116

advertisements, paid Google, 135

Adwords, Google, imitating, 135–137

aggregators, 8, 328

Amazon API

authors, parsing, 166

described, 4

interface, choosing, 150

limitations, 150

personal store

creating, 170–171

keywords, populating by, 173–175

list, populating by, 171–172

possibilities, 150

reasons to use, 149

registering, 150

REST search, sample, 151–152

SOAP interface

author, searching by, 162–165

described, 152–153

prices, monitoring, 168–169

product, examining in depth, 165–168

product sales rank, monitoring, 169–170

results, presenting, 155–156

search page, usable, 156–162

simple search request, 153–155

Amazon Standard Identification Number. See ASIN

amp entity name, 14

ampersand character (&)

on page widget, 56

XML encoding, 13, 14

Apache

feed pre-generation, saving file, 74

phpinfo() development system, 334–335

apos entity name, 14

apostrophe character ('), 13, 14

application data, eBay, 234

array, paths ending with / (forward slash), 36

ASIN (Amazon Standard Identification Number)

personal store, 170

prices, monitoring, 169

results query, 167

simple search, 151

AsinSearchRequest method, Amazon products, examining in depth, 165–166

associate ID, Amazon, 151

asterisk (*), 41

Atom

Content-Type header, 66

described, 9

support, adding, 32–33

tips feed example, 88

XML template feed specifications, 321–322

0.3 specification, 20

attacks

IPN, defending against, 240

login information, 40

single-click purchases, 40

XSS, 9–10

attribute, XML, 11

auction, online. See eBay API

auction types, eBay, 205–206

authentication tokens, eBay API, 201–202

Authorization header, Del.icio.us API, 278

authors

Amazon search

parsing, 166

sample, 162–165

simple, 151–152

Atom feed specifications, 330

auto discovery declaration, 83