Our own Jacob Brunson has added OpenSearch support to LDSSearch.com. OpenSearch, as Jacob points out, is an open format for the sharing of search results. This means that you can use 3rd party search engines like Amazon’s A9.com to get results from ldssearch.com.
UPDATE: On his personal blog Jacob discusses several possibilities for OpenSearch from a religious perspective. For example, it would be great if the Church’s new Gospel Library supported OpenSearch.