user22928: I found this site: 
http://guadagnarebitcoins.altervista.org
What do you think? Is it a scam? Are the things listed on it scams?

user22915: First of all, Bitcoin is money (or at least treated as such). It is just another currency, just like USD, EUR, YEN, etc.
So what you are asking: How do I earn money without working:

Arbitrage
Interest
Slavery
Gambling (however, I discourage anyone to do so, better open a casino)
there might be more

All of these ways might need assets of some sort, and some time invested. Wait, time invested? Isn't that work? - Yes
If you are not already filthy rich, you won't make bitcoin/usd/moneys without putting in time (a.k.a work).
If you do not have enough money to invest, get a job and make more money. Invest this. Only invest money that you can afford to lose.

user21451: The site covers two topics:

A basic introduction to Bitcoin
How one might be able to obtain Bitcoin for "free"

I'll discuss only item 2.  Several possibilities for earning Bitcoin are presented:

Mining
Performing sponsored actions
Using certain services that offer Bitcoin as an incentive
Performing mechanical turk tasks
Investing
Betting

The page at guadagnarebitcoins.altervista.org does not itself offer any service, and appears to simply offer information.  Therefore, the site itself is not a "scam."
However, as the site references a number of different third-party sites and services, you may find that your experience with those individual sites  will vary along a continuum of legitimacy (or lack thereof).
All of the proposed methods involve some non-zero amount of effort.
Considering the proposed methods ideally involves a good deal of judgment, self-knowledge, and reflection with questions like:

Will mining result in the profit I think it will?
Is this a good ROI for my time and money?
How much do I know about investing?
How much time and/or money can I afford to lose?
Is gambling a good way to earn money for me?
Do I have reasonable confidence that the service will pay me?

And so on.

22928: <p>I found this site: </p>

<p><a href="http://guadagnarebitcoins.altervista.org" rel="nofollow">http://guadagnarebitcoins.altervista.org</a></p>

<p>What do you think? Is it a scam? Are the things listed on it scams?</p>
 22915: <p>First of all, Bitcoin is money <em>(or at least treated as such)</em>. It is just another currency, just like USD, EUR, YEN, etc.</p>

<p>So what you are asking: How do I earn money without working:</p>

<ul>
<li>Arbitrage</li>
<li>Interest</li>
<li>Slavery</li>
<li>Gambling <em>(however, I discourage anyone to do so, better open a casino)</em></li>
<li><em>there might be more</em></li>
</ul>

<p>All of these ways might need assets of some sort, and some time invested. <em>Wait, time invested? Isn't that work?</em> - Yes</p>

<p>If you are not already filthy rich, you won't make bitcoin/usd/moneys without putting in time (a.k.a work).</p>

<p>If you do not have enough money to invest, get a job and make more money. Invest this. Only invest money that you can afford to lose.</p>
 21451: <p>The site covers two topics:</p>

<ol>
<li>A basic introduction to Bitcoin</li>
<li>How one might be able to obtain Bitcoin for "free"</li>
</ol>

<p>I'll discuss only item 2.  Several possibilities for earning Bitcoin are presented:</p>

<ol>
<li>Mining</li>
<li>Performing sponsored actions</li>
<li>Using certain services that offer Bitcoin as an incentive</li>
<li>Performing <a href="http://en.wikipedia.org/wiki/Amazon_Mechanical_Turk" rel="nofollow">mechanical turk</a> tasks</li>
<li>Investing</li>
<li>Betting</li>
</ol>

<p>The page at <strong>guadagnarebitcoins.altervista.org</strong> does not itself offer any service, and appears to simply offer information.  Therefore, the site itself is not a "scam."</p>

<p>However, as the site references a number of different third-party sites and services, you may find that your experience with those individual sites  will vary along a continuum of legitimacy (or lack thereof).</p>

<p>All of the proposed methods involve some non-zero amount of effort.</p>

<p>Considering the proposed methods ideally involves a good deal of judgment, self-knowledge, and reflection with questions like:</p>

<ul>
<li>Will mining result in the profit I think it will?</li>
<li>Is this a good <a href="http://en.wikipedia.org/wiki/Return_on_investment" rel="nofollow">ROI</a> for my time and money?</li>
<li>How much do I know about investing?</li>
<li>How much time and/or money can I afford to lose?</li>
<li>Is gambling a good way to earn money for me?</li>
<li>Do I have reasonable confidence that the service will pay me?</li>
</ul>

<p>And so on.</p>
