Free social bookmarking software for linux

Bookmark4U is a server-based bookmark management PHP scripts using MySQL. Bookmark4U provides you a comfortable bookmarking environment. With Bookmark4U, you can access to your favorite web sites everywhere just by a click. You will not remember URLs of them any more.
Main features:
- The bookmark data are stored in a database in the server.
- Each user can search their bookmark database very easily.
- Bookmarks can be arranged in folders in any depth.
- For each bookmark, visit information is managed such as the visit counter or the last visit time, etc.
- Import from or export to the local browser bookmark (Netscape, Explorer, and Opera).
- Support multilingual users.
- Users can set their own preference.
- You can access to your firends bookmark tree.
- Clipboard, Trashcan, History Layer, Calendar, and more.

SocNetV is a Linux GUI program written in Qt3.
Social Networks Visualiser project main purpose is to bring to our Linux box comprehensive Social Networks Analysis and Visualisation.
It can read and write various network file formats and enables the user to visually modify an existing network or draw a new network using the mouse. Network and actor properties, such as distances, centralities, diameter etc, can be easily computed. Also, it can create random networks (lattice, same degree, etc).
SocNetV is NOT antagonistic to any commercial/scientific SNA programs, like PAJEK, visone, UCINET, AISee, KrackPlot, which are developed by groups of professionals and scientists. It is rather a personal trip to learn SNA and C++ programming while keeping the code open for others to learn from my mistakes. If you find it useful Ill be glad. But be aware that there is no warranty of efficiency, correctness or usability.
Oh, and this site is under never-ending construction as well.
Installation:
To see SocNetV in action, you need a modern Linux distro with Qt 3.x. Download the latest release from the link "Download" on the left. Untar the archive, cd to the new directory, and use:
/usr/lib/qt3/bin/qmake (or wherever are your Qt libs)
make
./socnetv
Enhancements:
- tarball of v. 043.1 was corrupted. fixed.
- Fixed display of HTML help in Debian package.
- Fixed wrong numbering of new actors with double-click.
- Fixed creation of links through middle-click.

Algorithm::SocialNetwork is a social network analysis.

SYNOPSIS

use Graph::Undirected;
use Algorithm::SocialNetwork;

my $G = Graph::Undirected->new();
$G->add_edges([qw(a b)], [qw(b c)]);
my $algo = Algorithm::SocialNetwork->new(graph => $G3);
my $BC = $algo->BetweenessCentrality();
# $BC->{a} is 0
# $BC->{b} is 2
# $BC->{c} is 0

METHODS

So far this module implement the algorithm provided in [1]. More handy algorithm would be included in the future.
This module is a Spiffy module, methods provided as "field" are marked.

new([graph => $G])

Object constructor, an optional graph parameter could be passed in to specify the network graph to be analyzed.

graph([$G]) [Spiffy field]

Without arguments, this method return the current Graph object.

BetweenessCentrality([$vertex])

The implementation of algorithm provided in [1], if an optional parameter $vertex is given, return the BetwenessCentrality value of that vertex, otherwise, return all vertices BetweenessCentrality value, stored in a hash, which hash node name as keys.

ClusteringCoefficient($vertex)

Return the clustering coefficient of a given vertex.
WeightedClusteringCoefficient($vertex)

Return the weighted clustering coefficient of a given vertex. The graph object passed in should have weight attribute set on edges. Weights are default to 1 if its not set.

DistanceCentrality($vertex)

Return the distance centrality of a given vertex.

ClosenessCentrality($vertex)

An alias of DistanceCentrality().

GraphCentrality($vertex)

Return the graph centrality of a given vertex.

edges(@vertices)

Return a list of edges that connets any two of @vertices.

Move into the next dimension of web technology with IMVU, the worlds greatest 3D instant messenger! IMVU Toolbar is a Firefox extension that allows you to navigate quickly and conveniently through the IMVU website.

Be a part of the next trend in web social interaction with this extremely functional toolbar. It allows you quicker access to all the things you want from IMVU, all the time!

Imagine how easy it will be to jump in to check your IMVU homepage for messages, see whos online in your buddylist, look through random profiles, surf for products in the catalog, and more with just a simple mouse click.

Boingle is a Firefox extension with the role of a social annotation. With the Boingle toolbar for Firefox, you can add your own comments to any web page.

The result is a simple, unassuming link left in each page that allows other Boinglers the opportunity to read your comments and add their own. Have fun...voice your opinion...Boingle!

NewsCloud Media Platform project is a LAMP-based social network community site for news aggregation and citizen journalism. The system integrates Smarty for template customization.
The NewsCloud Media Platform allows bloggers, developers, communities and organizations to integrate news gathering and discussions between their own Web sites and the NewsCloud community. The NewsCloud Media Platform is open source and can also be used to launch independent news-based community Web sites.
The NewsCloud Wiki will help you get more involved in using the NewsCloud Media Platform.
Guides for Bloggers and Groups
NewsCloud makes it easy for bloggers to share their work with our community and improve the news gathering elements of your own site. If you are a blogger interested in using NewsCloud to enhance and promote your blog, youll want to read our Guide for Bloggers. Our Guide for Groups is coming soon.
Guide for Developers
Whether you are interested in using our NewsCloud Web Services API to enhance your own Web site or want to get involved in using or extending the code behind NewsCloud, youll want to learn more about the NewsCloud Media Platform. Please visit our Guide for Developers for more information.
We also have set up a Google Groups Developer Forum for discussions and peer support.
Guide to Templates
NewsCloud provides a powerful templating system for customizing your journal, your groups and soon your own news site. If you are interested in designing the look and feel of your NewsCloud pages to brand your organization, non-profit, blog or Web site, please visit our Guide to Templates
Enhancements:
- We made some slight changes to make installation easier.
- We have a complete Debian install script on our Wiki now.

SimpyTools is a collection of various software for using and enhancing the simpy.com social bookmarking service.

Simpy Tools includes libraries in various programming languages for using the REST API of simpy.com. It also includes a Firefox extension and more.

Simple wrapper-lib for accessing the http://www.simpy.com/ REST API via python. See http://simpytools.sourceforge.net for details, and libs in other languages

Synopsis:

# get and store links in files matching a query
client = SimpyClient(user, passwd)
links = client.getLinks( {limit:20, q:+tags:"programming" +tags:"trails"} )
for i, link in enumerate(links):
s = urllib2.urlopen(link.url)
if s is not None: file(str(i)+".html", w+).write(s.read())
else: print "URL "+link.url+" was not handled"

Supported Calls:

GetTags, RemoveTag, RenameTag, MergeTags, SplitTag
GetLinks, SaveLink, DeleteLink
GetWatchlists, GetWatchlist
GetNotes, SaveNote