Getting past firewalls on iPod touch apps (at school)?

[Mary]

Well thing is, it depends on how deeply the site is blocked in the main system, point is

1.check if the content you are trying to view are not restricted in the user policy.
2.if they have just blocked the site name like instagram.com , you can just bypass it by opening a long string site name from other sources
3.opt for third party vpn services that offer an alternate mode for viewing blocked sites

Free services::
hidemyass.com , Youhide.com , Proxy4free.com , Anonymouse.org , Anonymizer.com , Zend2.com , Unblocked.org , The-cloak.com , Surf24h.com ....etc

There's a catch your data can or maybe passed through different servers where others can view what you are looking to, so unless you are worried about your stuff being passed through unknown entities you are good to go.

There are paid services too... who claim to be completely "unaware" of the user content but it can be passed.