Alright, I need a bit of assistance here. Lately, I'm having a peculiar issue with a few of my sites. Before - I could cherry pick low to medium competition longtails, write up a great piece of content for it, smash the publish button, get indexed, and within 24-48 hours be placed on page 2-4 immediately. The past few weeks, however, my pages are getting indexed, but they aren't getting a good initial ranking at all. In fact, they don't even show up in the top 100. My question is this - why would this happen all of the sudden? And what can I do to fix it? And, to clarify this once more so I don't get the typical "you need to build links" replies.... these are very low competition phrases that I typically land on page 2-4 for with ZERO links built - solely on good on-page practices. Also - there are NO penalties against the sites whatsoever. Older pages are still ranking well. Its only new pages that are now having this issue. Any input would be greatly appreciated. Cheers.