Whether looking for the nearest coffee shop on a GPS-enabled smartphone, nearby friends via a social-networking site, or all trucks within the city delivering a certain product, more and more people and businesses are using location-aware search services. Creating such services has often been the domain of expensive proprietary solutions and geospatial experts. Recently, however, the popular open source search library, Apache Lucene, and the powerful Lucene-powered search server, Apache Solr, have added spatial capabilities. Lucene and Solr committer Grant Ingersoll walks you through the basics of spatial search and shows you how to leverage its capabilities to power your next location-aware application.

With IBM InfoSphere(TM) Content Collector, you can prompt users to add
additional archiving information to e-mail documents before the documents are archived.
The user interfaces that are used to prompt for data are Web 2.0-style Dojo
applications, called forms. This article describes how to customize
forms to integrate with Web services and how to include new user interface elements.
With this knowledge, you can build forms that model advanced use cases that are
tightly integrated with your environment.

The introduction of the Google App Engine saw a wave of frameworks emerge to facilitate developing applications targeted for it. The Gaelyk framework, one such framework written in Groovy, eases development of lightweight applications that leverage a datastore. And the scalability you can achieve is impressive.