VTChromizer scans links with Virus Total from Chrome
https://chrome.google.com/webstore/detail/efbjojhplkelaegfbieplglfidafgoka
KrebsOnSecurity mentioned the Virus Total service, which scans files or URLs against a large number of security products in order to detect malware. The VTChromizer extension adds a button and context-menu entry which allows you to scan URLs directly in Chrome.
I use Web Of Trust for most of my link categorization but this may be a nice tool for that additional level of security when you feel you need it.