June 11, 2009
Single purpose API
SEOmoz, a leader in SEO software, has offered link intelligence APIs for a few years (Mozscape being the latest). Although Mozscape has garnered high adoption rates (over 10 million requests/day), customer feedback uncovered shortcomings. SEOmoz now knows that 10 requests/second and a max of 50 URLs/batch "is not able to support everyone's use case." Accordingly, SEOmoz enhanced Mozscape API capabilities and is currently in beta. Although the beta is in its early stages, throughput has increased 400%.
Google will restrict access to an unofficial, unpublished Autocomplete API that developers have used to integrate autocomplete search functionality within their own applications.
Blekko is a search engine which uses both algorithms and human interaction for producing high quality search results. Currently serving more than 3 billion pages, Blekko sorts through spam, content farms, and sites containing malware in order to offer only real information to the end-user.