Suggestions for gbrief-creator

The following packages have something in common with the package gbrief-creator. The packages are ordered in decreasing similarity.

Package ligatex: Remove unnecessary ligatures
Package xtrcode: Extract contents of LaTeX environments
Package ochem: Typeset chemical formulae with LaTeX
Package fribidixetex: A pre-processor for XeTeX files to support unicode bidirectional algorithm
Package latexdb: Integrates LaTeX and SQL databases
Package nlatexdb: Database reports using LaTeX and .Net (or Mono)
Package ratexdb: Database reports using LaTeX and Ruby
Package gtex-letter: A Gnome assistant to ease the writing of LaTeX letters
Package dinbrief-gui: GUI for LaTeX package dinbrief
Package lxmail: A letter-generator that produces LaTeX output
Package xunicode: Generate Unicode characters from accented glyphs
Package texsurgery: A LaTeX companion to the texsurgery python project
Package context-letter: ConTeXt package for writing letters
Package envelope-letter: Draw a layout to fold the first page of a letter into its own envelope
Package formlett: Letters to multiple recipients
Package postage: Stamp letters with »Deutsche Post«’s service »Internetmarke«
Package address: Generate form letters and address labels
Package block: A block letter style for the letter class
Package fullblck: Left-blocking for letter class
Package fax: Document class for preparing faxes
Package postcards: Facilitates mass-mailing of postcards (junkmail)
Package yaletter: Extremely flexible macros for letters, envelopes, and label sheets
Package cdpbundl: Business letters in the Italian style
Package envbig: Printing addresses on envelopes
Package myletter: An old letter class
Package serial: Generate serial letters
Package scrlttr2copy: A letter class option file for the automatic creation of copies
Package beletter: Typeset Belgian letters
Package bellmac: Outline scheme for form letter production
Package envelope: Print envelopes
Package make-env: Print USPS standard envelopes