In a new blog post, Ligaya Turmelle reminds us about the Call for Papers that's still open for this year's OSCON - but not for much longer.
Anyway, here is the link for submitting a proposal and the currently listed tracks include Linux, PHP, Perl, Python, Ruby, Java, Databases, Desktop Applications, Web Applications (client-side and server-side), Windows, Administration, Security, and Emerging Topics.
The deadline for entry is this coming Monday, February 5th (2007) and all entrants much submit the form for their entries to be considered.