Facebook has come under fire after revelations that adult sites could show up in people's Facebook account timelines.
Technology blog Techwag has warned Facebook users to prepare for embarrassing connections to porn sites to start appearing in their timelines once the "gestures" feature goes live in coming weeks.
The timeline feature means users will have an ongoing and persistent record of activities when on Facebook and so will others who can view their page.
What this means is that if a porn site uses passive sharing options on Facebook, has "like" buttons on its page or allows people to sign into their site with a user's Facebook details, then all of that will be recorded on the timeline.
However, this will happen only if people choose to interact with porn sites.