Please contribute either your own materials or materials from other sources if they can be freely redistributed (e.g., open source or shareware software). We will gladly accept any pertinent:
related in any way to the use of computers in chemistry, life sciences or materials, provided that we are assured by the submitter that the material can be legally posted on CCL Web site.
The preferred mode of submission is the Upload Files Page that ensures that files are properly documented and will be easy to find on the CCL Web site. It was also created to ensure that the Internet search engines will properly index the uploaded materials. I also have a write-up on How and Why to Upload Files that explains the upload procedure and should convince you that sharing is a good thing for all of us.
If for some reason you cannot use the the Web page upload at http://www.ccl.net/cgi-bin/ccl/upload_files I still support the FTP file upload. This is a pain, since incoming directory is overwhelmed by people (or maybe those are robots {:-)}, who knows...) who want to see if it is possible to use our ftp site for anonymous distribution of whatever. Of course they cannot do it, but they do not know until they try... I may be forced to discontinue it at some point. Even if you use FTP to contribute files, please provide documentation and PLEASE send me e-mail when you are finished and provide instructions. I have to find your good stuff among tons of dung, and also I am forced to clean the incoming directory quite often. How the FTP upload works:
ftp ftp.ccl.net
Name: anonymous
Password: your-e-mail-address (you may prepend it with - if
it does not work)
cd incoming
binary (to set binary mode for compressed files)
mkdir mystuff (just an example -- use your own name)
cd mystuff
put readme.txt
put myfile1
put myfile2
...so on
quit
Note, for security reasons, you will not be
able to list or retrieve files that you uploaded.
It is inconvenient, since things seem to go to the black hole,
but if we allowed retrieval from our ftp incoming
directory, it would soon become a primary site for anonymous distribution
of offensive material or bootleg software. Besides this
inconvenience, the files are being uploaded.
Please attach information about items that you contribute
e.g., as a "readme.txt" file, and your contact information.
Once you are done please send a short note to
Jan K. Labanowski 
and your contribution will be reviewed and placed in
CCL archives in some logical location. We will let you know
where it resides so you can announce it to the Computational
Chemistry List and other lists/newsgroups as available for
public download/viewing.
If you cannot upload your files please let us know, and tell us what happened in some detail. We want to know about problems and fix them. Finding a compromise between security and convenience becomes more and more difficult.
If you, or someone that you know will soon change
a job, retire, or is just too busy to maintain a site, please help.
There is a lot of good software, utilities, documents and data
that disappear from the Internet forever for one reason or another.
We would like to salvage as much as possible of this stuff for a common
good. If something is in public domain (or can be legally placed in it)
please let us know and help.
Changes happen so quickly in Cyber space. CCL aims
to preserve valuable materials at our stable CCL site to give permanency
to these many useful tools, documents and data.
There are numerous examples in the peer-reviewed research publications
where the materials and discussions of the CCL resource
are being quoted and referenced. Consider uploading your results,
input examples, documents, presentation slides, etc...
Thank you for your cooperation.
Jan Labanowski