Protecting Your Listings:
Many companies and people make a name for themselves but do not adequately protect their own name or site name in the search results.

No matter how powerful your name is if you do not create multiple sites with good inbound linkage data you will likely end up with sites or pages that help destroy your brand listing near the top of search results.

Apparently Search Engine Roundtable has a client experiencing these problems.
Anyone Can Cause Major Effects:
The beauty of the guerilla warfare in-the-search-results marketing ideas are:

• if you can get your dissent seen others will likely have the same experiences.

• You can easily encourage others to make similar sites (or create content on your site) and target other similar words.
• Using a couple days and a couple hundred dollars you can create a site which ends up costing some company hundreds of thousands of dollars to dislodge.

Make Your Corporate Dissent Stick Out:

• build a viral linking campaign into your site

• search for other dissenters and contact them. encourage linkage.
• place BlogAds and other similar advertisements on sites which are owned by vocal people who you know will be outraged by and spread the topic of your site.
• leave comments and trackbacks on blogs which heavily support the company you dislike. if they care enough they may rant about you and give you additional linkage data.
• publish using a blogging system and integrate your site into the blog community by making lots of comments on related blog posts and registering your site at many of the blog directories.
• publishing your content as a blog also can allow others to quickly create you content for you while they are thinking about that topic.
• always remind people to "link to us"
• make sure that even if their name is not in your domain name (which you may not want it to be for legal reasons - check the laws where you live!!!) that it looks as though part of your official name contains the name of the company you do not like. this helps to encourage linkage data which overlaps with their name.
• use fact and research on your site...if it is just a rant site it will not be as effective. people are more moved by emotion than by just numbers though. combine those facts with displaying raw human emotional pain and suffering for maximum effect. (get pictures and stories on your site. Pretend that you are Michael Moore and you are in Flint Michigan).
• get listed at many directories under categories such as Allegedly Unethical Firms. if it is a single complaint then list in the single complaint category.
• if you can convince enough other people to also make sites on the same topic then that company can get their own DMOZ category which may rank well based upon the power of the DMOZ directory.
• make your site as SEO friendly as possible. If you have a site which is taking a major corporation to task feel free to email me and I will see if I can give you a free copy of my ebook.

Effective Anti-Corporate Marketing:
If it is readily apparent that you are biased or if you insult the intelligence of the readers odds are that the site will not have a ton of effect on consumers. If you are just trying to annoy the corporation then it may worth it to make the copy extra spicey, of course check your local laws and whatnot :)

Corporate Responses:
Companies may want to sue you, but then again they will probably not want to throw media weight / plublicity toward your site. Odds are that they will need to invest money into making many unique corporate sites and building the link popularity for them.

As they build sites they have to build up all of them or leverage their link popularity well to avoid your site from showing up.