Searching for Obituaries?

Does anyone have a good source for old newspaper Obituaries? I am looking for an obituary that would have been posted about six years ago.

Also, has anyone ever used this service:
http://oa.newsbank.com/oa-search/we/Archives/

The site charges per obituary and I wanted to find out if it was worth it before purchasing. Also, wanted to make sure the site was reputable.

Thanks in advance for any help,
Angie Godina