I've seen my sites nosedive for one reason or the other, but never seen anything like this. I was holding at #180 and then started to move up...w/in two days I was at #125. Then the site plummeted to #395 and then dissapeared from the SERPs for a day or so, then come back into the SERPs a day later around #390, go up a little, maybe to #350, and disappear from the SERPs again. Two days later it appeared again at around #395. I've seen it do this once before w/ another site, but not keep on appearing and disapearing in the SERPs. Just wondering if you guys have experienced this with your own sites before.

I'm still doing the backlinking just about every day...so I'm not sure what's going on.

Yes...this is a new site. It's probably happening because of this???

May I know what your target keywords are? Looks like you're targeting a competitive keyword or niche. You can only outrank your competition by building quality links for your site.

It's just because it's new. Keep building those links and it will stablize. Then the hard part is making rise to a decent spot.

I think your problem with your site appearing and disappearing is just temporary as new sites get to experience that. Just try to keep doing what you're doing with establishing quality backlinks, for sure after a while it will become more stable in the serps., of course provided that you are constant with your seo work.