[web2py] like face book post and power by web2py

[Ramkrishan Bhatt]

We have create a post where people can post url, meesage etc like face book 
where we need to fatch automatically thumnail or screenshot whith some text 
ot titel. we are using web2py please suggest us best way to buid.
Since its already there in power by web2py i am sure Massimo can share code 
for that. or any one please provide solution Asap.