Sebastian Hammer writes: "There is a new release of the YAZ toolkit available (in addition to maintenance releases of ZAP and Zebra). The most important change is that we include support for an early version of the ZOOM API. ZOOM is an exciting new development in Z39.50, which suggests a common, high-level interface which can be implemented across many toolkits, and in most programming languages. It promises to make life a lot easier for developers of Z39.50 clients."
from the gBib site: "gBib is a user-friendly editor and browser for BibTeX databases. You can use it also to insert citations inside a LyX document." Written in C++ w/STL, which makes it unique among the existing citation managers, but lots of feature overlap.
from freshmeat: "The purpose of mifluz is to provide a C++ library to build and query a full text inverted index. It is dynamically updatable, scalable (up to 1Tb indexes), uses a controlled amount of memory, shares index files and memory cache among processes or threads and compresses index files to 50% of the raw data. The structure of the index is configurable at runtime and allows inclusion of relevance ranking information. The query functions do not require to load all the occurences of a searched term. They consume very few resources and many searches can be run in parallel.
[changes include] Integration into the GNU project, complete re-architecture of the inverted index structure, major performance enhancements, and more." All this apparently from the principal author of Catalog...