RSS Bot is one of my favorite software tools for getting a broad range of backlinks. In a nutshell, RSSBox lets you create spun, unique backlinks across numerous RSS feed websites that will give you backlinks.
In my experience, RSS Bot is one of my keys to getting high rankings in Google.

Here is how RSS Bot works:
First, you enter the url you want to promote. As you can see in this picture, you can spin the keywords associated with your feed and also the description. By spinning the text you can ensure there is unique content associated with your backlink. Although I did not do this in the picture, you spin everything, including the feed name.

Second, create a submission profile. You can create an unlimited number of profiles to use with RSS sites.
This is what a sample profile looks like:

I tend to create a new profile for every url being promoted. You do not have to do this. You could also use a single profile to associate with all of your RSS submissions.
Third, select the websites to submit to. RSS Bot comes preloaded with numerous websites where you can submit RSS feeds:

The sites are categorized by whether you can submit to the site on autopilot, or whether or need or login, or need to answer a captcha.
When submitting your url you can submit to all sites, or just selected sites in a certain category. This can be useful for faster submissions if you do not want to answer the captcha sites. You also have the option to select individual sites you want to submit to, or individual sites to skip during the submission process.
In this picture, I have first selected all the possible sites to submit to, and then deselected three sites to show how you can control every aspect of your submission.

Finally, click submit and away you go! Then it gets real easy: just click the submit button and software begins submitting your url to numerous RSS sites.
If a captcha needs to be entered it will pop up on your screen, you enter the word, and the software moves on to the next site.
It is very, very fast. You can also select how many “threads” of submissions will be processed at the same time to make submissions even faster. I typically leave it as 4 different sites being submitted to at the same time, mainly because my computer is a little weak on memory. If it had more I would go even faster.
Additional Cool Tools
Let me show you the main menu in RSSBot:

The three extra and very useful tools in the menu are submission report, ping, and feed creator.
Submission Report: This gives you a report showing the sites that were submitted to. I do not use this too much myself, but if I ran a submission service and were getting paid to create backlinks, I would want to have a submission report to prove I had provided the servce.
Ping: In addition to submitting your links to numerous RSS sites, you can ping various sites to let them know your link has been added at the RSS location. This helps ensure each new backlink gets counted by Google.
Feed Creator: I saved the best for last. WordPress sites some with an RSS feed built in. But what if you have an html site?
Check this out …

This is an example where I started to create a RSS feed for Google.
What RSS Bot does is begin spidering your website and grabbing each page with the header information for the page. You can instruct RSS Bot to ignore certain files, such as graphic files.
You can stop the spidering at any point. Then, you can select which files to include in your RSS feed.
With a click you are done. A RSS file is created that you can upload to your website.
This is how I create fast RSS feeds for my html websites. Then, I use RSS Bot to use those feeds to create backlinks.
Overall: my review of RSS Bot is that it is a very easy to use tool and quickly creates unique backlinks to my pages. I have used it countless times to get backlinks.
Tip: Since you can use this with any url, you can get backlinks to backlinks. Also, if you have a backlink on another site, such as a blog comment, you can create backlinks to that comment to give it more ranking power, which in turn will result in more PageRank flowing to your website!
Get it here: RSS Bot