This has been going on for a few days for me, but I see other mumblings from people who seem to be having similar problems where the site is just crippled for them. It doesn't seem to be browser specific.
On my office computer (Win 8), using Chrome. First I noticed that avatars and other photos weren't loading, then a variety of links didn't work. After refreshing my cache, etc I tried logging out.
Now the LOG IN link doesn't work (appears disabled - can't click it). On the Tripadvisor.com landing page, Other than the top banner photo of the beach, no other images are loading. Not even the image for Follow us on Facebook or Twitter. I've been this way for some number of days. Can't log in because the link isn't being enabled.
I've cleared everything I possibly can from the cache, deleted all cookies, etc. all the way back to "the beginning of time". Closed all browser windows. Even rebooted. It didn't help.
I'm having no problem using Chrome for a variety of other sites, and have been routinely on TA from this computer and browser in the past with no issues.
I can use IE on this same computer and it's fine (though it seems to be timing out following some links - so it's not perfect).
If anyone at TA wants to PM me, I'd be happy to send email you a screen shot of what my landing page looks like.
On my home computer (Win 7), Chrome to TA is working fine.