The technology adoption route for IT departments: Ignore, prevent, tolerate, allow, integrate.

Top tip http://zamzar.com will convert PDF's back to word documents. Sweet for doing cut and paste on locked pdfs

Good explanation of bloom filters  http://www.michaelnielsen.org/ddi/why-bloom-filters-work-the-way-they-do/ … (via @werner)

This is cool (via @monkchips) http://aws.amazon.com/free/ A free small instance for a year. There is no reason not to try AWS now.

The 7 SaaS revenue streams http://icio.us/z4j2qv

RT @florianseroussi: The Must-Have Gmail plugin http://post.ly/tOaG << I have to say this is pretty impressive having just tried it

How to read maths. Wish I'd read this in school (or college, or anytime before now) http://icio.us/z5l31a

Advice for building distributed systems from Google http://icio.us/pd4gxs

What every programmer should know about memory (an oldie but a goodie) http://twurl.nl/40gz8j (114 pages of smarts)

The Reality of Freemium in SaaS, worth a read : via @chrija http://icio.us/qzmtkl

Aho and Ullmans foundations of computer science online http://infolab.stanford.edu/~ullman/focs.html

turn any song into an iphone ringtone http://icio.us/mj515b

I'm 12 pages into Daniel Kahnman's "Thinking, fast and slow" and I'm pretty sure this will be one of the most important books I read this yr

Penalty in Ireland for copying a DVD, A fine of up to E 125,000. Penalty in Ireland for collapsing the Irish economy, payoff and pension.

Sweet. Convert any webpage to a PDF file. Quick as well http://icio.us/jiakd3

If you are running a startup I recommend you read all of Fred Wilson's MBA Monday posts http://www.avc.com/a_vc/mba-mondays/

Turn your wordpress installation into fort knox with these plugins http://icio.us/qygrpf

Ryanair website is just disgraceful. Exploitative and manipulative in the extreme. Booking a flight feels like getting mugged.

John Cleese on Creativity: The importance on the Open Mode and Closed Mode : http://t.co/IZQIyi5I via @glinner

Security wonk talks utter bollocks about the Internet on the BBC website http://t.co/ILhceIeL via (@euan)