I was looking for a way to see trends on SCN content today, and through some poking around I found a cool site called Wordle which generates keyword trends based on a Twitter feed. Here's how SCN looks on Wordle!
There is also a high resolution JPG version for download here.
Sadly for me I did not see the word 'rules' anywhere within there. I was very happy to see 'process' and 'BPM' however as large focuses. It was also interesting to see that there is very few people speaking about ERP right now compared to CRM and BI.