Choosing RSS Aggregators Online type

RSS Aggregator - Online Aggregators
Advantages and Disadvantages

Below are some of these Online Aggregators :

Bloglines
Advantages:
- all major browsers supported (e.g. Netscape Navigator, Internet Explorer, Firefox)
- user-friendly especially for beginners
- free, web-based aggregator
- easy registration
- no advertisements
- contains its own directory of RSS feeds of thousands of websites
- personal email account for subscribing to newsletter emails (optional)
- allows privacy adjustments for personal blogs
- allows saved searches
- mobile version available
- 10 languages supported
- Additional add-on tools for automated blogrolls and subscription buttons

NewsGator
Advantages:
- free (consumer-standard version)
- provides personalized news channel
- allows translation of RSS articles into email format
- synchronization of feeds in several devices possible
- browse and search feed capabilities save time on surfing
- allows keyword filtering
- blog headlines
- button-click automatic subscription to news feeds

Disadvantage:
- Outlook-based thus limited to Windows

My Yahoo
Advantages:
- Free web-based aggregator
- user-friendly
- customizable home page design
- button-click subscription to RSS feeds
- built-in directory and search tool for feeds
- wide variety of feeds e.g. news (science, technology, local), weather
- connects to all Yahoo features and services

Disadvantage
- banner advertisements