I haven't used any of the hosts or redirectors linked below, so I can't vouch for them. (Well, I do use BulkRegister, but indirectly.) These are just the ones I came across while investigating such things. If I do end up using any of them, I'll decorate my links appropriately. To learn more about hosts and their services, see Web Hosting Ratings (which also provides a lot of useful information for the host seeker on its Education pages) or HostCompare.com. If you're looking for a free host, see Free-Webhosts.com.
The first time I heard that people could access your home machine through your cable modem, I thought it was a joke. But it isn't! Slap a cable modem into your Windows machine and suddenly you're as vulnerable as the big boys, if not moreso! What were they thinking? (The answer probably is: they weren't thinking. See my thoughts on censorware design, and why today's software is so virus-friendly.) Here are some things that might help...
If you're troubled by adware/spyware, try Lavasoft's Ad-Aware (http://www.lavasoft.nu or http://www.lavasoft.de) and/or Spybot Search & Destroy (http://www.spybot.info).
Come on, admit it... If you've got a website, you've probably done a vanity search to find out who's linking to your pages! Try a link: search at AltaVista or a +link.all: at AllTheWeb (which also offers -url.host:, which is useful for filtering out your own offsite links to those pages). Google does a pretty good job too. But that won't find them all... no search engine indexes the entire Web. And link:komputado.com and link:www.komputado.com at AltaVista don't return exactly the same results, though AllTheWeb seems to do a better job at finding subdomains. And sometimes you can find more links just by searching for some relevant words, depending on which engine you're using. Oh, well. Another good resource is LinkPopularity, which uses several major search engines to do the search for you. They'll also send you a free monthly email of this information. In defense of vanitysearching, I'll point out that it's a good way to locate interesting information; If they linked to you, then chances are good that they've got something on their pages of interest to you! Also, it tells you which pages the world finds most valuable.