DBOW is a database compiler-compiler or front-end. It takes table definitions in a relatively high-level language and prepares C, C++, PHP, Perl (etc) functions for manipulating the database. It will also produce SQL table data for MySQL.
PhotoArch is a set of PHP scripts. It is a front-end to a photo database.
It is not a web photoalbum. It is more! It allows you to index and reference your photography collection and make parts of it available to general public or a set of users.
"libnetsql" is a collection of functions, written in ANSI C, which gives the opportunity to treat IPv4 address as long number (like in_addr_t type in C).