Comparison of Mysql fulltext search and lucene

http://jayant7k.blogspot.com/2006/05/mysql-fulltext-search-versus-lucene.html
is a good article to compare lucene and mysql fulltext search. The primary issues are speed and customization. These are the advantages of Lucene. Mysql comes up to be an ease-to-use tool for full text search (you don't need to build your complicated program).

Another interesting project is http://www.xapian.org/. Unlike Lucene is in Java, this package is written in C++. This makes integration into C++ much easier than Lucene. Xapien also promotes a web-based search engine Omega.

Fulltext search is good when we want to search article. It may not be so good for searching if we want to summarize an article.