( CNN ) -- In your lifetime , you will send thousands , maybe millions of online messages . But what if you could only send one more ? In China , where superstitions surrounding death are rife , new websites let Internet users leave digital imprints even after they pass away . One service is called `` Life Black Box '' and the idea is simple : You sign up and upload whatever you want -- be it secret photos , random thoughts , sensitive files , or final goodbyes . When you die , the website sends your data to people you 've chosen . Li Jia , the creator of the Life Black Box , said he thought of the idea in 2010 , when he was on an extremely turbulent plane ride . `` I had recently divorced -- and I realized I had a lot to say to my ex-wife , my son , and my parents , '' he told China 's TechWeb . Last week , during China 's annual Qingming festival to honor deceased ancestors , his website became a trending topic on Chinese social media amid widespread reflection over the missing Malaysia Airlines airliner . `` The Malaysia Airlines incident made us remember life is precious , '' wrote one microblog user . `` If one day , your life is coming to an abrupt end , will you have any regrets ? We should create online wills ; it 's emotional sustenance . '' Other microbloggers said the recent Kunming railroad station terrorist attack and Changsha market knife attack also made them consider signing up for the Black Box . Li said his website now has 360,000 registered users . Many have jobs that are dangerous or require constant traveling , and a great number are in their thirties or forties . According to TechWeb , over 28,000 online wills have been created in Jiangsu province , where 14 Flight 370 passengers are from . In another twist , employees at the Life Black Box website said 31 people on the missing jet 's passenger list matched the names of its subscribers . But a spokesperson for the website told CNN no links have been confirmed , as many Chinese people have the same names . Virtual graves . Yet Black Box is not the only Chinese website that attempts to deal with death . One website called Waheaven , which says it has over three million users , lets users create online memorials by uploading images of their deceased ancestors , after which they can pay traditional tribute by lighting virtual incense or laying virtual flowers . Another Chinese memorial site calls itself a `` virtual home '' for dead spirits , and lets users pay blessings to anyone from Princess Diana to Genghis Khan . But the most melancholy may be the `` Last Post '' project , by Chinese social media user Lin Dongping . Since 2011 , Lin has run a popular microblog account where he reposts final messages from ordinary people who have passed away . So far , he has already compiled stories of over 1,500 deaths . After each story , thousands of users , many of them strangers , leave tributes and well wishes in the comments . A 30-year-old reporter , dying of cancer , wrote in her last tweet , `` The operation ended ... I could n't even have porridge or water for six days ... this is one of the greatest tortures i have experienced . '' Another user posted a suicide note . `` I 'm depressed , so I 'm just going to die . No big reason . Do n't care too much . Bye bye . '' Over 294,000 people replied , many of them simply saying `` Rest in peace . '' Digital afterlives . For today 's Internet users , death raises a set of interesting new questions : What happens to our data when we 're gone ? Will anyone save our imprint , or will our virtual lives fade into digital dust ? Lin said his goal is to honor the memory of the dead , no matter their stories . `` When people die , digital information is their legacy , '' said Lin in a TEDx talk . `` I 'm just doing the work of a monk performing a funeral rite . '' In the end , services like Life Black Box and `` Last Post '' seem to say that even in death , we do n't have to be alone . On Lin 's microblog , one final post , from a 17-year-old Chinese teen who ultimately died of cancer , was addressed to his younger sister . `` Please remember -- no matter how long you go without hearing from me , I will always give you faith , hope , and love . '' CNN 's Zoe Li in Hong Kong , and CNN Beijing interns Lucrezia Seu , Qi Zhang , and Andi Wang contributed reporting .
In China , new websites let Internet users leave digital imprints after death . Comment: Other popular websites act as public memorials for the deceased .