If you're the person who always logging anything like I do, probably you should try Simplenote , "easy way to keep notes, lists, ideas, and more" -- that's what they say in their website :)

For me, the ubiquity to using their service in many platform is their advantage. As a vim user, fortunately there are already many plugins to support my need in using Simplenote service, and one of them is Vimplenote

One reason for choosing Vimplenote than another plugins is because it's the easiest one to configure. I also using Vundle, Vim package manager to install and manage my vim plugins.

Enough said, just follow my steps to do it:
1. I prefer clean install, so move your ~/.vim and archive it

$ mv ~/.vim ~/.vim-bk

2. Create new ~/.vim and ~/.vim/bundle (to contain your plugins)

$ mkdir -p ~/.vim/bundle

3. Setup Vundle

$ git clone https://github.com/gmarik/vundle.git ~/.vim/bundle/vundle

4. Configuring .vimrc

 set nocompatible               " be iMproved
 filetype off                   " required!

 set rtp+=~/.vim/bundle/vundle/
 call vundle#rc()

 " let Vundle manage Vundle
 " required! 
 Bundle 'gmarik/vundle'

 " My Bundles here:
 "
 " original repos on github
Bundle 'mattn/vimplenote'

Bundle 'mattn/webapi'

 " ...

 filetype plugin indent on     " required! 
 "
 " Brief help
 " :BundleList          - list configured bundles
 " :BundleInstall(!)    - install(update) bundles
 " :BundleSearch(!) foo - search(or refresh cache first) for foo
 " :BundleClean(!)      - confirm(or auto-approve) removal of unused bundles
 "
 " see :h vundle for more details or wiki for FAQ
 " NOTE: comments after Bundle command are not allowed.. 

5.  Get webapi-vim and vimplenote-vim

$ git clone git://github.com/mattn/webapi-vim.git ~/.vim/bundle/webapi
$ git clone git://github.com/mattn/vimplenote-vim.git ~/.vim/bundle/vimplenote

6. Running and installing bundle

$ vim
:BundleInstall

7. Using Vimplenote (do it inside vim)

:Vimplenote -l     " list of your Simplenote notes (you'll be prompted to fill in login credentials)
:Vimplenote -d    " delete your current note
:Vimplenote -n    " create new note
:Vimplenote -u    " update current note
:Vimplenote -t     " add a tag to a note
:Vimplenote -s    " search a note

And you're good to go :)

You can also see the README file in every plugin page to see additional info.