Here's a test I have in process.  I bought an old $5 closeout domain from Godaddy TDname expired auction.  I put a quick minisite up and linked to it with a crazy anchor text phrase.  The domain is ranking for that crazy term now.  It's gone through one pagerank update and I'm waiting for a second to come.  Then I'll redirect the domain to another minisite.  I suspect the second site won't rank for the anhor text, but we'll see.  
They are easy to type and remember: You can’t get a easy to remember new domain name without paying huge bucks these days. Gone are the days where you can simply grab almost any incredible domain name just by paying a couple of bucks. This is one of the major reasons most people look for expired domains because most expired domains are short and sweet.
So, let's start off with the simple website list crawl. So settings for this is covered by the general crawl settings and these apply to all the other types of crawl as well, such as the Search crawl and the Endless cruel, so pretty simple really. Delay between each request to a website. One second, this is in seconds. Secondly, concurrent websites crawl how many websites you want to crawl at any one point in time and then how many threads will concurrently crawl per website. So that's ten, a crawl of ten websites at once, and each of those websites there's three different threads crawling. That's 30 concurrent connections you've got going.
I am a rather gray-hat affiliate marketer by trade, but I"m looking more into going into local SEO and blogging ventures that I feel will be most sustainable. I am having serious moral issues with using any of my link building strategies, but the one I'm struggling morally and long-term strategy-wise is the use of a manufactured link-juice-flowing-thick private blog network. I believe the majority of these will ultimately fall by the wayside in the future when their social value and content are proven to lack substance by machine reading and advanced social metrics. 

Domain Hunter Gatherer gives you a lot of options when it comes to getting a starting point for your drop domain search. This amazing tool also makes filtering drop domains so much easier. You have to understand that the vast majority of drop domains out there are complete junk. You have no business buying them. Unfortunately, if you don’t know how to filter correctly, most of these domains would look very attractive. You end up wasting your money on domain names that do not recoup the dollars you invested in them. Domain Hunter Gatherer makes filtering so much easier. It incorporates Moz and Majestic API support without requiring you to have an account on those services*. It quickly lets you know how many social media mentions a particular domain has, it lists out the number of backlinks that the domain used to have, and so on down the line. It's a very fast piece of software because it is multi-threaded. Finally, once you've identified certain domains you'd like to track, you can save them very easily. If you are looking to take your online income to the next level, you should definitely get your copy of the Domain Hunter Gatherer today. It will definitely make your life easier.
So, you paste the domain into here and click on the search domains button. This will show you more information about the pending delete status domain. In this case, you have to order by June 13th and today is the 10th. So, you have three days and you just add it to your cart as if you’re just buying anything online. Just check it off and click add to cart. It’s added to your cart and they will try to get it on your behalf.
One of the ways to make the most of this strategy is to sign up for Mobidea. Whatever expired domain you may have, there are high odds that Mobidea would have an offer that’s relevant to your domain’s niche. You simply host your website on the expired domain, place Mobidea’s offers on your website and whenever you make a sale through your website, you receive an affiliate commission!
DomCop has a great offer that all of you buying expired domains should consider. For the price of a couple domain names, you can use DomCop for a month, snag some excellent domain names, which would otherwise cost you thousands of dollars. If you're considering expired domain software and don't have the knowledge to program your own crawler, I'd lean towards DomCop.
Quite a lot of the time majestic trust flow will be great but ref domains below 10 but when I check ahrefs its considerably higher for ref domains. Without ahrefs I would of passed over these domains and missed out. Worthwhile addition if your building a lot of pbns. I also use linkultra backlink for my final spam check as it checks language,site type and if backlinks are comment, profile spammed etc enabling me to check if the backlinks of the domain are solid very quick.
For example: If the domain name is registered with Moniker (the registrar) and the domain name reaches expired status, within a few days of expiring the domain name will be listed at (auction house partner to Moniker). Domain names are exclusive to one auction service, as an auction cannot take place at two locations.
The second option requires a bit more time and effort than a 301 redirect. You could do a mini overhaul of the site and turn it into a microsite for your main domain. This option is good for exact-match domains for your targeted keyword, and there are other reasons for going the microsite route that Rand's highlighted in his post about root domains, subdomains, subfolders and microsites. This strategy also works better if the old domain has decent rankings for the keywords you're targeting.
That’s it for deleted domains which you can just pick up by heading over to your favorite registrar and registering it right away as long as it says, free and green here. If it says registered it’s obviously taken. This is obviously a cheap way to get some great links because let’s say, you know, this site we saw is not bad. It doesn’t have page rank, but that could be just because there was no content on the site. If it has a solid link profile, you can be sure that the page rank will come back and you can pick it up for about $10.
Your course of action really depends on how much work and effort you can put into the expired domain. If you're barely able to maintain and optimize your current site, you probably want to just 301 redirect the old site (note: see my amended comment above about the link value not likely to be passed). If, however, you're more creative and have some time on your hands, you can try your hand at crafting a microsite. If you really know your stuff and are experienced at making money off various websites, you'd probably do well with the third option.

I like to also click on the No Fake PR’s and No Unsure PR’s because a lot of fake page rank or page rank that’s been manipulated in the past and you want to make sure any authority that you see is real. Once you’ve picked all the criteria you want to choose, click on the apply filter button. This took our list from two million to 237. Now, even within that, that’s kind of overwhelming.
We do not only have Expired Domains, but you can also find lists of Deleted Domains for a lot of TLDs. Deleted Domains or Dropped Domains are available for registration and can be picked up for just the normal regfee at your preferred domain registrar! All Domains have the typical SEO relevant data, like Number of Backlinks, Birth Date and a lot more.