I wondered how to get a small channel to get to about 100 subscribers?

[Tibs]

At the moment I have 140 subscribers and their are a few things you can try:

Comment, respond,and network with other YouTubers. Remember YouTube is a social network.
Advertise on relevant forums around the internet.
Promote your channel on social media
Advertise on social media
Add lots of tags
Edit your video
NEVER use a camera that does not film in HD
Disable monitization at first until you build up subscribers

But of course their is a small chance that none of this works out or you need a little boost and in those cases you can use sites that help you grow such as this one:
http://www.enhanceviews.com/rpage.php?r=S57N05igxJ8=

They don't violate YouTube terms of service and can give you that little push you need to spread your channel.

Also the YouTube algorithm used to attract people on YouTube to your channel relies heavily on how long people watched your video not how many views you have gotten.