With MetaModel, you use a type-safe SQL-like API for querying any datastore. It is a data access framework providing a common interface for exploration and querying of different types of datastores. It isn't a data mapping framework. Instead, it emphasizes abstraction of metadata and the ability to add data sources at runtime, making MetaModel great for generic data processing applications, but less so for applications modeled around a particular domain.
Google Sitemap Generator is a tool installed on your Web server to generate sitemaps automatically. Unlike many other third-party sitemap generation tools, Google Sitemap Generator takes a different approach: it will monitor your Web server traffic and detect updates to your Web site automatically.
TiTLi is a Google-like search tool for relational databases . It builds on top of Apache Lucene to provide an API and a GWT-based UI for searching multiple databases from various vendors simultaneously. It is very fast due to indexing, and the database is queried only when a record is chosen.