There are no definitive answers. Perhaps the answer is to return your own. How much revenue that you want out of blogging activities? You own a set.That, the blogging actually offer very many opportunities. Unfortunately, especially in Indonesia, this opportunity has not been much used. Blog is still considered a diary online, or worst only seen as a personal blog personal. In fact, if managed in a professional and serious, blogging can be very profitable, and earnings in the amount that will make anyone’s eyes bug out of view. 
Following is a list of blogs with revenue outside of my usual manner from various sources. Hopefully can get inspiration.
1. TechCrunch
TechCrunch initially only managed by Michael Arrington, a lawyer who at the same time a tech geek. Today, TechCrunch digawangi by a number of editors who worked as a team. This blog is a niche technology, and starts up. Earnings per month that TechCrunch is $ 200,000 (or equivalent Rp.2.053.000.000!) And especially from the banner ads. Perhaps he said, the price for a spot ad on TechCrunch is $ 10,000! (or equivalent Rp.102.650.000!).
2. Mashable
Mashable is a blog created by Pete Cashmore, a web technology consultant from Scotland, and at this time diawaki by 10 people remain editor. Blogs with the tag line “The Social Media Guide” is zero in niche social media as a target. Established since 2005, Mashable now has $ 180,000 cash (or equivalent Rp.1.847.700.000!) Each month. Mashable main source of income is from the banner ads.
3. PerezHilton
PerezHilton celebrities news blog is created and maintained by Mario Lavandeira. take the name from Paris Hilton, blog with entertainment niche and tag line “Celebrity Juice, Not from concentrate” is perhaps the $ 140,000 cash (or equivalent Rp.1.437.100.000!) Each month. Main source of income comes from banner ads.
4. Gothamist
Gothamist is a blog about the New York City. Created and maintained by Jake Dobkin, a blog with the tag line “New York City News, Food, Arts and Events” is a lot of money from PPC ads. Per month, Gothamist ditaksir earnings reached $ 80,000 (or equivalent Rp.816.287.872!).
5. TimothySykes.com
This blog, according to his name, owned and managed personally by Timothy Sykes, a broker and manager Hedge fund of origin United States. With finance niche, blog Timothy Sykes especially get a lot of revenue from the sale of products affiliate finances. Each month, blog with the tag line “Short Selling Penny Stocks” at least earnings $ 80,000 (or equivalent Rp.816.287.872!).
6. VentureBeat
VentureBeat is a technology news blog and starts up, which is managed by Matt Marshall. Established since 2004, Venture Beat every month the money $ 62,000 (or equivalent Rp.636.429.998!) To Matt Marshall. Main source of income comes from PPC advertising.
7. LifeHacker
LifeHacker is a blog that criticize these tips on the practical in daily life. Maintained by Gina Trapani and Nick Denton, the blog’s tag line “Tips and Downloads for Getting Things Done” is the $ 60,000 (or equivalent Rp.615.899.999!) Especially from the banner ads.
8. TutsPlus
TutsPlus is a unique blog that contains a variety of video tutorials and tips, practical tips. Created by Collis Taeed and started by a number of editors to keep each segment tutorial, TutsPlus the tag line “Mad Skills” produces $ 55,000 per month (or equivalent Rp.564.575.000!). Main source of income is the banner ad.
9. Smashing Magazine
Smashing Magazine is a blog that is intended primarily for web designers and web developers. Each month, Smashing Magazine earnings $ 50,000 (or equivalent Rp.513.250.000!) Especially from the banner ads. Created by Vitaly Friedman, a web developer, in 2006, Smashing Magazine is now run both with Sven Lennartz, a German web designer.
10. StevePavlina.com
As the name suggests, StevePavlina.com owned and managed personally by Steve Pavlina, a teacher developing the personality of origin Las Vegas, United States. Blogs with the tag line “Personal Development for Smart People” has an income $ 45,000 (or equivalent Rp.461.925.000!) Each month. Main source of income comes from PPC advertising and JV (Joint Venture).
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One thing is interesting, from the tenth blog above, it appears that there is no niche blog with a “make money from blogging.” This means, to make money through blogs, you do not need to create a blog with the topic make money from blogging. Blog with a niche that many internet users to search such as Entertainment, Technology, Finance, Sports or Politics, in fact it has monetization opportunities that more profitable.
How do you think? Tempted to follow them?