More Mac 101, our series of tips and tricks for novice Mac users.

This is really two tips in one. The first is a fairly basic one that new Mac users might not know: you can drag any folder to the right-hand side your dock (to the right of the faint-white lines which separate the Trash from applications). When you first set up an account, the Applications, Documents, and Downloads folders are already there.

The second is a "news to me" tip: did you know that when you connect via screensharing to different Macs, a file is created in your home directory at ~/Library/Application Support/Screen Sharing/?

These files can be used to reconnect to those machines simply by clicking on them. This means that you can launch Screen Sharing without having to switch to Finder, locate the machine, and then click the "Screen Share..." button. If you screen share to a different Mac, the .vncloc file will automatically be added to that folder. Just drag the folder of Screen Sharing shortcuts to your dock to make it into an easily-accessible Stack.

Using the Finder does have one advantage: if a computer is not available (if it's powered off or asleep) it will automatically disappear from the "Shared" section in Finder. The files in the Screen Sharing folder will still be there, so if you are having trouble connecting, you might check Finder to make sure that it still "sees" the computer you are trying to reach.

Henrik Nyh also suggested putting VNC shortcuts in a Stack in the dock, and he adds the notion of picking some suitable icons for them. Check out his rundown here.

I love everything about my MacBook Pro, but for some reason it does not like to share its screen. It appears under the "Shared" section of the sidebar in Finder, and file sharing works perfectly, but for some reason screen sharing won't work. The "Connecting To 'MacBookPro'" panel will pop up and then disappear a few moments later (as if it is about to connect), but at least 90% of the time no screen sharing window appears.

Fellow TUAW writer Aron Trimble suggested that I go into Finder and try "Go > Connect to Server" and then put in "vnc://10.0.x.x" (where 10.0.x.x is my MacBook Pro's IP address). That worked immediately, and every time.

This confirmed that it wasn't a firewall setting (Screen Sharing is explicitly on) or trouble accessing the MacBook Pro over the LAN (file sharing already worked perfectly). For some reason the screen sharing connection was just not being made over Bonjour.

The only drawback to this direct-IP method is that my network, like most, uses dynamic addresses with DHCP, meaning that the IP addresses change from time to time, especially on a network with multiple devices which are not always turned on. My first thought was to create a static IP for the MacBook Pro in System Preferences > Network, but then I realized that my office LAN uses IPs which start with 192.168.x.x. I could create a new network "Location" but that would also involve manually switching it back and forth, or using a third-party program.

What I really needed was a way to make sure that my MacBook Pro is given the same IP every time it connects to my home LAN. Fortunately, Apple's Airport Extreme will allow me to do just that using DHCP Reservations.

A DHCP Reservation tells the Airport Extreme to reserve a certain IP address for certain computers, as determined either by a "DHCP Client ID" or the computer's MAC address. A DHCP Client ID is easier to remember than a MAC address, but the MAC address will never change unless you swap out the logic board or Airport card of your Mac. I'll show you how to set it up using either method.

Every "point-oh" version of Mac OS X usually brings some small bit of pain, as I find some little utility no longer works. Snow Leopard has been no exception. I had been using the version of Screen Sharing from 10.5.4 because it had some "hidden" features which I liked. Unfortunately those "hidden" features were also "unsupported" features. When 10.5.5 came out, they were gone, but I continued to use the version of Screen Sharing from 10.5.4 which worked until 10.5.8. Sadly for me, it does not work at all in 10.6.

The biggest drawback of Screen Sharing was the removal of the Bonjour Browser, which showed a list of computers available for Screen Sharing (both locally and via Back to My Mac). Now I had to type them in manually, which isn't such a big deal when you are trying to connect to a machine on a local network. If you are trying to connect over the Internet, however, you need to use the full hostname, which may look something like this: macbook.yourname.members.mac.com. Plus, it just seems like one of those things that the computer ought to do for me. [Side note, if you are looking for a handy way to see all the Bonjour services on your local network, check out Tildesoft's free Bonjour Browser utility.]

While looking through a bunch of old files in my ~/Downloads/ folder, I found a version of ScreenSharingMenulet. I checked its webpage and saw what I was looking for: "ScreenSharingMenulet 1.7.1 and higher is compatible to Mac OS 10.6 Snow Leopard." ScreenSharingMenulet sits in the menu bar along with your other menu extras. Simply click on its icon (shown above) and choose which computer you wish to connect to via a dropdown list. In my testing it worked very well over a LAN although it did not seem to pre-populate with the machines over the Internet. Given the flakiness of Back To My Mac over ther Internet, I can hardly fault this program for that shortcoming.

ScreenSharingMenulet is free (donations accepted) from Stefan Klieme who has several other handy-looking utilities at his website. If you use Screen Sharing a lot, it's definitely a handy tool to have around.

The good folks at Skype have just gone gold with the 2.8 update (link) (previously in beta) of the popular VOIP client for Mac OS X. As TUAW previously noted in the beta release of 2.8, the update brings with it support for screen sharing and Skype Access, the company's pay-as-you-go Wi-Fi service.

With screen sharing support, you now have the ability to share presentations, documents, and slideshows with that Windows friend of yours that you would otherwise ignore -- you know, that guy whose PC tower is so well-decorated with neon lights that you'd think you went to a rave when you walked into his room. Yes, that guy.

A host of other features are also included in the update. Improved chat management provides the ability to sort and prioritize chats, a quicker way to add people to chats, and mood messages for chats. Larger profile pictures (now up to 256x256 resolution) are now supported; and if you want to hide your profile pics from incoming contact requests, this is now supported as well. And for those of you that can't keep track of who you're talking to, or what you last talked to that person about, you are now given the luxury of a notes field for each contact.

Skype 2.8 is available for download (link) at the Skype website, or via the "Check for updates" option within the Skype app.

Glenn Fleishman of Macworld, Wi-Fi Networking News and TidBITS fame has written two new Leopard ebooks, both published today by Take Control Books. The new titles, Take Control of Back to My Mac and Take Control of Screen Sharing in Leopard, are part of the popular Take Control ebook series.

Take Control of Back to My Mac provides many tips on how to get .Mac's MobileMe's problematic remote access service up and working for you, while Take Control of Screen Sharing in Leopard discusses the many tools available for sharing your Mac screen with others.

The books are $10 each, but if you purchase both ebooks and enter CPN006780611BUN as a coupon code, you'll get an immediate $5 discount. There's no excuse to suffer in silence with Back to My Mac anymore!

In the interest of disclosure, I've written two titles for Take Control Books, neither of which are discussed in this post.

[Via TidBITS]