If you are strict to use UD only then perhaps you can take help of Scrapebox and add your own custom sites to UD. Or there are softwares in market with having good success rates + 5000 approx number of sites in it.

The Demon itself is you not understanding that all these things doesn't work anymore..

Put on your thinking cap, anaylze your site from when Penguin started and where you are for old and new sites..

I'm sure you will thank me..

If you PM me I have some lists you can have. (untested at the moment - but specific to the niches)
I I would check your onsite factors first and only commence link building once you are savvy enough to understand what Penguin is looking for.

Two points.

Firstly - make sure your site is strong. Penguin 2.1 is not rewarding strong link structures aimed at weak sites. It sees this as an anomoly and a signal of self promotion. Although the dust hasn't settled yet, this is what we are seeing so far.

Two - Don't get conned into thinking links don't matter. They are still the biggest factor in site ranking. Ahead of social signals, ahead of content. They maybe shouldn't be,. and I'm not making a judgement call here. But they are all the same.

The guys who have private link memberships (some from this very forum) are still doing screamingly well (for now) on links often with no context, no content and on sites that are entirely irrelevant to the link anchors...despite everything we're told, that just doesn't seem to matter.

Again it SHOULD matter... it just doesn't (for now)

I'm really hoping relevance starts to play more of a part in the process. It's where Google are headed, they just haven't come as far as they and those that evangelize for them would sometimes report.

Scritty