Low quality content according to Google Panda updates are:

* Use of content that is directly copied from other websites.
* The content which contains irrelevant information to the site and is less informative for the viewers.
* Over optimization by keywords in the content, i.e. putting keywords unnecessarily in the content which distort the meaning of the content.
* Use of non-related links in the content.
* Use of inappropriate and wrongly spelled words in the content.
* Use of repetitive content or writing about the same point in the whole content.