When it comes to massive forum posting there is no alternative than using XRUMER. Period. Its been the most hidden weapon of webmasters and this tool will not go away like so many short lived solutions to do blackhat SEO.

from their site (download your demo here!):

XRumer is the premier automated link-building tool. Through the use of this tool you will see a significant increase in the number of unique visitors to your site, as well as see your site jump in the search engine result pages. The tool is popular among both novices and gurus because of both its flexibility, power, and effectiveness. XRumer is extremely reliable and its fully automated workflow makes link-building a breeze. read more...

DETAILS:

# Multithreaded submitting: over 50 simultaneously running threads possible! (30 threads are recommended for optimal performance under 128 Kbps bandwidth)

# Software can perform registration at forums (if necessary for posting messages) and automatically fill in the required fields. Upon successful registration XRumer posts the user-specified message and/or links.

# The powerful built-in proxy-server checking script locates available proxy-servers worldwide, choosing anonymous addresses among them.

# Software is able to work with lots of different types of forums and guestbooks: phpBB and PHP-Nuke with any modifications, yaBB, VBulletin, Invision Power Board, IconBoard, UltimateBB, exBB, phorum.org, wiki, different types of bulletin boards and even custom-written code.

# Attention: unique feature – software works around EVERY possible type of protection from automatic registration, including:
- Pictocode protection (tickets, captcha), which look something like: "Enter the number you see in the box". Details...
- E-mail activation protection. Details...
- Java-script protection. Details...

# During the process of posting a detailed log is created with precise path-links to posted messages so that you can check every link and every posted message afterwards.

# A built-in proprietary "Question-answer" system.

# A variations system, using which you can post up to 10000 messages all looking different but with similar contextual meaning and the user-defined hyperlinks in them. It helps to broaden the key queries (for Search Engine optimization) and protect your posts from being filtered out by Search Engines (that is, your posts will be included in SERPs).

# If the forum has more than one category, the software chooses the one most suitable for the message, otherwise it sends the message to off-top, flame sections or the like, and in case those do not exist - to the most visited category on the forum.

# BB-code can be used.

# The following forum base processing tools are included: repeated links deletion, hit descending sort, service denial according to customizable black list, and various filters. The program informs the users about availability of new versions and possesses many other powerful features.

Below are listed main specification and features of XRumer

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