Here are a couple ways, I didn't go into details on any of them but can if needed.
1) Myspace.com
2) Stumbleupon.com
3) Forums
4) Craigslist.org
5) Site maps
6) Submit To Directories
7) Search Engine Optimization
8) Squidoo.com
9) Social bookmarking sites
10) Article Promotion
11) Site Explorer
12) Epinion.com
13) Alexa.com
14) Newsletter Box
15) Scribd
16) Get Links from Relevant Websites
17) Increase the Size of Your Site
18) Send out Press Releases
19) Advertise On Online classified Ad Sites
20) Use Firefox Plug-in
21) Add a Forum to Your Site
22) Add a Blog to Your Site
23) Optimize Your Blog for The Search Engines
24) Comment on Other Peoples Blogs
25) MySpace News
26) Digg
27) Banner Exchanges
28) Traffic Exchanges
29) Pop Unders
30) Technorati and ping it when your blog content changes
31) Use a ping service like pingomatic to ping RSS aggregators
32) Submit your blog to all of the RSS directories
33) Link to other blogs in your posts
34) Use Stumbleupon to stumble your posts.
35) Ask your readers to submit your posts to social bookmarking sites (Digg, Reddit, etc.)
36) Start a group blog.
37) Join SpicyPage and promote your blog
38) Join a webring.
39) Sign up for BlogWoods and promote your blog
40) Exchange Ads (not blogroll links) with complementary blogs.
41) Trade blog roll links with related blogs.
42) Use Twitter
43) Publish videos on YouTube
44) Search for Wikis related to your.
45) Join Hub pages and post links to your blog from articles you write.
46) Pray.
47) Create a MySpace Page. Put your blog on it, and get some friends.
48) Tell people you will link back to them if they review your blog
49) Most brands are not well established online, you review related content and it will rank well.
50) Review relevant products on Amazon.com.
51) Create product lists on Amazon.com
52) Review related sites on Alexa
53) Review products and services on shopping search engines.
54) Swap some links.
55) Try to get links from within the content of relevant content pages.
56) Sell items on eBay.
57) Target niche social news sites like DZone, Sphinn or Hugg
58) Whenever you send an email to someone, always add your website url as a signature.
49) Do email signature swaps
50) Tag blog posts at social bookmarking sites
51) Add photos to your blog with appropriate keywords - Google Images generates traffic too.
52) Tag blog photos at Flicker
53) Make a custom 404-error page for your website. You can provide a link back to your main website or even try to monetize it by offering a related affiliate program within your niche.
54) Outsource grunt work.
55) After someone orders from you offer a one-time offer that compliments your product.
56) Participate in Blog Carnivals
57) create a network of blogs in different niches, and then link them together
58) Give away stock images with a wee watermark of your URL
59) Find and discuss memes
60) Create a Yahoo Group in the niche your site sits.
61) Bookmark your site on Del.icio.us and if you?re really keen, add a Del.icio.us button to your homepage.
62) Place a free ad for your company on Gumtree.
62) Syndicate your site?s content by using an RSS feeds.
64) Submit your RSS feeds to aggregator sites.
65) Don?t worry about PageRank - worrying about PageRank is as effective as trying to solve an algebra equation by chewing bubblegum.*
66) Get a custom t-shirt made with your website URL on it, and wear it often.
67) Get a custom t-shirt made with your website URL on it, and wear it often.
68) Send out a newsletter!
69) Giving away an eBook is an excellent way to generate word-of-mouth about your site.
70) Ask bloggers and other Web site owners to review your site and/or products.
71) Add a ?Tell a Friend? function to your site, so people can easily recommend you to their mates.
72) Share your banners on banner exchange sites.
73) Create a ?lense? for your site on Squidoo
74) Do you have really hot content on your site that geeks would love? If so Slashdot will bring you a mass of traffic.
75) upload a favicon.gif file so that your users have a nice icon when they bookmark your site.
76) Set up a feed on MyYahoo.com so your site gets regularly spidered by the Yahoo search
77) Use Ping-0-matic to ping blog directories. Do this every time you publish.
78) Print your blog URL on your business cards, brochures and flyers.
79) Use Trackback links when you quote or refer to other blog posts.
80) Increase the list you ping
81) Use Facebook
82) Social Networking
83) Micro
84) Email Marketing
85) RSS Feeds
86) Get outside links to internal pages
87) Use free hosting and build sites and link them back to your main site.