If you're going to participate please bring sites down by exploiting bugs, straight up DDoS is bad for internet access for everyone in Iran.

Slowloris DoSes sites using low bandwidth.

http://ha.ckers.org/slowloris/

You don't need to ddos the network connection. All you need is enough fake names that the database is worthless. How many fake names would it take per real name before its impossible for the police to check them all?

On the other hand, it's relatively easy.

Only if the sites are hosted in Iran.

why not just enter randomly guessed Iranian names into the site... to overwhelm it with incorrect data.

Don't identify more than a few people from the same IP. It's easy to do QA and spot someone who's putting in fake names if you get carried away.

That article has a flair of "kids playing the internet warz" to it.