What's easiest?

What do you mean by easy? Everthing worthwhile takes considerable time and work. You're asking the wrong questions so you're not going to get any decent answers. Some business models are "easier" than others and many of those would bore me (and maybe you) to death. Maybe the question is, what do I like? What do I want to do? What will give me both satisfaction, money and be able to provide something of value to my customers? Ask those questions first and then choose a business. Good luck.

You can integrate all of those into a campaign. You can find a product you want to promote and build a website around that product. Do your SEO and insert your affiliate links. You can also monetize the site with adsense as well. Then sign up for an email auto responder such as Aweber to build your list. Drive traffic to it. You can use paid traffic sources such as ppc or drive traffic through SEO.

Build 3-4 Amazon/clickbank sites...

Put auto products posters like azon builder on one or two websites. do manual work on the other sites.

Do seo, link building and see which site converts more.

Flip/work hard on the sites which are not converting much!!

work hard and U will reap rich dividends after a few months.

I'd say concentrate on affiliate marketing for low cost products. Here's something I posted in another thread...might be helpful to you.

How Newbies Can Make Fast Clickbank Affiliate Commissions Though it's easy to become an affiliate in Clickbank, you should always bear in mind that this is a very competitive place to be in. So you should be ready to compete with a lot of new and experienced marketers who also have access to the same products.

Strategies in Selling Clickbank Products
Don't let the stiff competition in Clickbank scare you away. There are some strategies you can use to effectively sell digital products online.
1. Choose a good product to promote
Do not make the common mistake of selling the popular products everyone else is selling. Do a simple research first to know if the product is in demand in the market. Also, make sure that the product you'll choose is of good quality.
2. Do some pre-selling
Most affiliates conduct pre-selling to qualify the leads they will be referring to the merchant's page. This will increase conversion rates because only interested individuals will see the sales page. One thing you can do here is to buy the product you are promoting, and write an honest review about it.
3. Be capable enough of driving traffic to the merchant's sales page
In doing this, you should decide first how you will attract traffic towards your affiliate website. You can go for paid advertising or you can spend time creating authority sites that are content rich and with affiliate advertising placed within them. It is good if you can use both strategies.
The nature of the traffic you drive to your affiliate site also matters. You should be able to send highly-targeted traffic, or else, your conversion rates will not be sufficient to cover the cost of advertising.

Money's on the list... I know that it has been an Internet Marketing cliche...But it is the truth...

If i were a newbie, i would start building a list.Start learning stuff about e-mail marketing.

Use Wordpress to set up your websites

There are tons of tutorials on Youtube on how to put your autoresponder code in your blog

Give something valuable to your subscribers for free

Start building your list

Make some money!

Wih you the best of luck and success!

Dimitris

Honestly, those can all be potentially good options, but in my opinion, the best option is affiliate marketing. AdSense should be renamed AdCents; there isn't much money in it anymore. I don't do list building too much anymore because I don't have the time to maintain everything.

Affiliate marketing is great as long as you choose a network with products that convert and pay well. There is no limit as to how much you can make and a lot of good affiliate companies will even help you make your first sale.

All three require a lot of work. If you go the AdSense route, you need to master keyword research and SEO to be successful. It takes time to master both, especially SEO.
General affiliate marketing is such a huge jungle that you can easily get lost and move in circles unending. You said you have made $100 so far. What was it that made you $100.00 in that short time. Maybe that is the easier option for you.

Affiliate marketing takes a while to get going, as does SEO and many other money making strategies.

Instead, consider offering services or creating products to sell on websites like this one and getting fast traffic ASAP.

I recomend building a list. I started out without a list and I wish I had.
In terms of ease of income I personally find AdSense very easy to earn with as one you have a good stream of traffic coming then your earnings come on auto pilot without the need for you to do much.
Its good to test and try lots of things to seewhst works best. You can hold onto the succesful sites an flip the ones that don't work out as well as you like or for some quick cash.
If you have funds to spare I highly reccomend outsourcing as much as possible.
Hope this helps

If it is easy, everybody will be doing it thus you share on the same cake.

As Bob Kelso once said, "Nothing in this world worth fighting for comes easy"

I think he is using easy as a relative term, AKA what is the fastest and most effective.

In which case I still say offering services.

Starting with adsense is always a good way to go. Do some keyword research build a microniche, add some adsense onto, expand that website with unique content. Build some backlinks and you should start to get a steady flow of traffic. It is as simple as it sounds to be honest.