Scrapebox, Commenting Demon and Comment Kahuna (free)

I would suggest that you have to do it manually because the quality of your comments will reflect through your backlinks.

Truth be told, most of these software programs have manual posting options too, which is what I recommend doing.

1) Scrapebox
2) DoFellow
3) Comment Kahuna
4) Fast Blog Finder

The last few will save user profiles is all and auto load them so it saves you a few steps. Obviously you are missing HALF the opportunity by spamming comments. If you use it as a place to exert authority you just may get referral traffic for quite some time. I have blog post comments that still send me leads from at least a year ago. So some pages that REALLY stick out in the SERPs can lead to traffic to your site.. not just link equity.

The automated software should have safegaurds to protect you from GOOGLE. You get banned from akismet then you are in trouble so be careful.. they don't ban just your IP, they ban your domain so kiss blog commenting good bye. That's another tally in the manual posting column!

Really this is one of the truly last free methods that you can still get a link on HIGH PR pages so the more you spam it the less effective it will be in the future. It isn't that hard to write a unique post each time that adds value to the post and shows you know what the heck your talking about at the same time.

Automatic submission are sometimes considered as spam. Try doing manual submission.

In the current SEs algo, blog commenting does NOT count as much in search engine ranking like some eBooks, reports and other gurus claim. Unless you're doing it in .edu and .gov ( that are not over-saturated with spam comments,leaving footprints) it's ranking power is basically close to zero. That said, it can sometimes generate spin-offs links thru rss feeds, that still doesn't do much impact.

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I had to add CAPTCHA to my comment sections because of automated SPAM commenting.

The comments they left were never relevant and stood out like a sore thumb. The clock is ticking on this technique.

Focus on making informed and relevant comments on blogs. Readers will see them and click through when they have the no-follow attribute applied or not.

Scrapebox it's a good software. However, I recommend manually submission because this type of automatic submission can be detected and your site penalized. It's not really fast but it's better to do all these things manually.

Looks like most of posters agreed that automated technique is not good, but they also forgot to mention, that blogs that do allow automated commenting are usually blogs with 2000 outbound links and comments already, and they dont give your link value.

It's better to leave one comment on one blog with only few outbound links, than 20 spammed blogs.

There are only some automatic commenting softwares as the softwares other members introduced. But it highly recommend to post comments manually because using automate commenting software can post comment for you very fast But most of these comments will not be approved at all and you don't get the result you hope from commenting.

I can only recommend Scrapebox. Amazing tool with alot of usefull addons.

Honestly there is no such thing as a good automated comment poster. If you have a blog and switch of all spam blocker plugins you will see the same mass spam junk from all these auto posters.

My personal top comment of the month start of as follows
"Why have you removed my post? It was very helpful information and i assure atleast 1 person found it helpful unlike the rest of the comments on this website. I’ll post it again. Sick of getting low numbers of useless traffic to your website?...."

Honestly this has nothing to do with my Solar power website or the market I target - funny how over 15 people manage to write the same thing.

If you can't manually submit your comments then you are just going to get your spam cut from blogs. Better to get 10 backlinks manually than 1000 spam links lost with auto junk posters.

Automatic Comments Posting Software, sounds funny
neat spamming software - Xrumer

call things by their real names

There is a new software in this forum called No Hand SEO. Maybe you can check this out.

To be fair and to keep everything fair, i would recommend you to go with manual comment writing (do maintain the quality, relevance and originality while doing off-page seo process) than using some automated tools to post comments on your behalf. doing such things may lead to SPAM or being Penalized by the Google.