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Drupal evolved towards this from a blog alike system 10 years ago, a content type with user generated comments below. Back then everybody knew that you should filter User Generated Content and stripe the HTML if you cared about the site. Many other systems up to today however do not filter UGC good enough; user signups, search input and many other ways a user can give input ot the system.
Now Drupal is talking to other systems, combining data from multiple sources, devs still need to understand that one should ***never*** trust input data, no matter if the source is another database or a user.
Because, what could possibly go wrong with just displaying this data directly or injecting it in the database? Why should you "checkplain" the TXT fields in zone of a domain? Why?
I am a big fan of all thing gesture (kinect) and augmented reality. So this "firewall" on aaron-sherwood's site is something I digg
And a bit more howto
Need some nerd time!
The first keynote speaker is Ancillia Tilia, former fetish model now known in the Netherlands a advocate on digital rights. She has been active in BIts Of Freedom, the Dutch equivalent of the EFF and the "pirateparty" in Amsterdam. The second keynote is from Jan Willem Tulp who creates astonishing data visualisations. Take for example the work descibed on on this page and burn some CPU cycles while flying in WebGL over over Amsterdam.
The featured speakers include Jeroen Tjepkema on web performance, Vincent van Scherpenseel on UX, Iacobien Riezenbosh (State of the web) and Sander Spierenbug (Ethical hacker at KPN, the largest telco in the Netherlands). Apart from these there is a full program on the site and it includes a Question and Answer session via the internet with Dries Buytaert.
Always wanted to ask a question (even if you are not coming to the DrupalJam or are from the Netherlands?), but were afraid to ask? Now is your chance. Do send in your hair raising questions to Dries! If you are stuck in Drupal, we also have a gurubar where the best minds of the Dutch Drupal community will help you out on the spot.
We would like to thank the sponsors and if you are around in the Netherlands, be sure to buy your ticket for 29 euros (30 if you become a member of the Stichting Drupal Nederland). It includes coffee, tea, water, quality lunch, 20 plus sesions, a free e-book from O'Reilly, the option to win 1 out of 5 free PHP Storm licenses, first free drink in the bar and eternal peace. If you do, be sure to pick the pick a badge.
Organising these events is always a lot of work but with a great team it is neither "a lot" nor "work". Thanks team! Peace.