SANS DFIR

http://computer-forensics.sans.org/blog/

The International Society of Forensic Computer Examiners

http://www.isfce.com

International High Technology Crime
Investigation Association (HTCIA)

High Tech Crime Consortium (HTCC)

http://www.htcia.org/

Bayside Solutions (BSI)

http://bsius.com

A Trusted Partner Managed Technical Services serving the Tampa and Orlando areas

Comodo

"If you have a suspicious file, please submit it online by using
the form below. Once the file is submitted, COMODO Automated Analysis System will scan it and report back its findings"

http://camas.comodo.com

Joebox - Sandbox

http://www.joebox.org/samples.php

JSunpack Online

http://jsunpack.blogspot.com/

Norman SandBox

"Free uploads of program files that you suspect are malicious
or infected by malicious components, and instant analysis by
Norman SandBox. The result is also sent you by email."

http://www.norman.com/security_center/security_tools/submit_file/

PDF Analyzer

"View PDF objects as hex/text, PDF dissector and inspector,
scan for known exploits"

http://www.malwaretracker.com/pdf.php

Sunbelt CWSandbox

"CWSandbox is an approach to automatically analyze malware which is
based on behavior analysis: malware samples are executed for a finite time in a simulated environment, where all system calls are closely monitored."

http://mwanalysis.org/

ThreatExpert

"ThreatExpert is an advanced automated threat analysis system
designed to analyze and report the behavior of computer viruses,
worms, trojans, adware, spyware, and other security-related risks
in a fully automated mode."

http://www.threatexpert.com/submit.aspx

URLVoid

"Allows users to scan a website address with multiple scanning engines
such as Google Diagnostic, McAfee SiteAdvisor, Norton SafeWeb, MyWOT to facilitate the detection of possible dangerous websites."

http://www.urlvoid.com/

VirusTotal

Send a file and see the detection according the AV vendors.

http://www.virustotal.com\