Xataface Email Module allows you to email to the results of any set found in a Xataface application. This allows you to easily convert your existing database of contacts into a mailing list. It supports HTML email, recipient opt-out, mailmerge macros, and more. The email is sent in the background via a cron script, so arbitrarily large email lists can be supported.
Vulpive is webcomic archive software with all of the common features of other online comics, plus some fairly novel ones. Comics can be uploaded for particular dates in advance, and will appear at midnight. There is a separate "calendar view" where comics can be browsed by thumbnail. Three different layout modes are available. Commentary for individual comics is supported. Plot arcs can be organized into chapters. It is easily skinnable by anyone with basic HTML or CSS experience. An automatic RSS feed is provided.
pyxmdb is a database utility for exporting and importing data between a delimited text file (e.g. CSV) and virtually any DBMS. It has been tested with SQLite, MySQL, PostgreSQL, Oracle, and DB2. It supports running SQL statements before and after performing the import or export. Also allows for any of the SQL statements to be read from a file or provided on the command line. It supports reading and writing of compressed files, in addition to standard input and standard output.