Portfolio + Blog: multisite or plugin?

Set your blog as Blog category and your portfolio as Portfolio category.
You might be also interested in Custom Post types (which I think is the right way to do it):

Run your Blog as a usual via Posts and set the Portfolio as Custom post type with its own categories, tags or what ever taxonomy you need.

Read more here: http://codex.wordpress.org/Post_Types

Multisite is a completely different concept.

Related Posts:

  1. Unique post-id for WordPress Multisite Network
  2. Solutions to repost categories into multisite blogs?
  3. Redirect to another page using contact form 7? [closed]
  4. Is it possible to send blog posts via email to subscribers?
  5. Add posts from other WordPress blog to the current one
  6. WP Forms not displaying,becomming an fatal error
  7. How to upload PDF from Front-End and post automatically?
  8. Automatization for automatization
  9. Internationalization of Blog Posts
  10. Change from blogger to wordpress
  11. Plugin Development: WPMU or WP?
  12. How to moderate posts
  13. Inherit plugin settings to new site in Multisite
  14. Show Similar Post Titles ( Similar to Stack Exchange )
  15. How to add option box in “Edit Post” plugin API?
  16. How do I unlock a post programmatically?
  17. How to work with Syntax Highlighter Evolved?
  18. User-Specific Timezones? Hack? Plugin?
  19. How to install plugins in individual sites on a wordpress network?
  20. Fatal error: Call to undefined function wp_get_current_user()
  21. jQuery plugin only in one page/post
  22. Auto-post to multiple sites like Posterous? [closed]
  23. Share buttons on article footer
  24. How to create a Page alias in WordPress
  25. How to extract images of post and pages excluding header and logo image in wordpress?
  26. Dynamic HTML not displaying at respective place
  27. Multisite: Activate plugin for subsites only?
  28. How to filter content post only on save
  29. How to make sexy bookmarks plugin work in WPMU
  30. How to setup a Network Plugin across the network with only my settings?
  31. WordPress language switcher
  32. Is there plugin to show recent posts from one website in the widget area of another?
  33. Is it possible to set up multistore in Woocommerce? [closed]
  34. How use %like% in sql statement wordpress
  35. Adding Attachment Display Settings in custom media frame
  36. Convert existing WordPress Site (with several plugins) into Multisite
  37. Disable multisite-wide plugins on specific sites
  38. How to get 1 or 2 specific posts on top of my wordpress blog?
  39. How can I disable the multisite feature of WordPress 3.0?
  40. Show function to super admin
  41. Generate pages from markdown files in github automatically
  42. Install (enable) plugins on multisite, on localhost
  43. posts comments goes to trash
  44. How can I copy all users to newly created site on a multisite network in WordPress?
  45. “Master” WordPress Multisite – Database Sync
  46. User Signup in Multisite – Need Plugin or Advice
  47. Add category selection to custom post type (plugin)
  48. Certain functions are undefined when called form mu-plugins
  49. Multisite for Multisite?
  50. Is there a way to get plugins and themes not built for multisite to work on a network subsite?
  51. How to get all posts belongs to a user between a certain date
  52. wordpress content .php file in an iframe’s src in a wordpress post
  53. How do I get the Payzone WooCommerce payment gateway plugin to show up in the settings? [closed]
  54. Managing wordpress Themes & plugins for multisite
  55. Function added to hook “new_to_publish” not executing – custom plugin
  56. Creating an admin meta box to save post as pending
  57. Getting a list of the published posts
  58. WordPress’s is_plugin_active_for_network function not working for multisites
  59. Custom Template for wordpress cpt plugin
  60. Storing Form data in a different database
  61. After enable multisite enviroment in wordpress site creation wizard not working
  62. Help to Create a Simple Plugin to make a post
  63. Is there a hook similar to “save_post” which only fires AFTER the post is completely published?
  64. How to Fix WordPress multisite woocommerce 403 file error
  65. How to capture hidden values with Gravity Forms
  66. Show post object of any page in frontend
  67. Trying to add a new feature in my wordpress website
  68. Powerpress upload a podcast without creating a post for it
  69. automatically set random featured image by category in wordpress on post
  70. Prefix WordPress Taxonomy Tags With Hashtag Symbol Like Twitter
  71. How to use get_blogs_of_user?
  72. Install/Enable/Activate plugin on multisite without access to master site
  73. How can I get the Post ID and Post Type within a Must Use Plugin?
  74. Renamed plugin folder and when I changed back nothing was activated
  75. How To Add Code To WP Without Plugin or Functions
  76. Get content and send to 3rd party
  77. How to make wp multisite subdomain exist search
  78. Specific plugin script not working on subdomain
  79. Is it possible to get a shortcode generated by a plugin, then, using a function, create a new post using that shortcode?
  80. WordPress Dashboard organize posts based on categories
  81. Add new post using a page inside the website
  82. How to set the default options on an existing plugin in a WP MU new user install
  83. Custom plugin breaks css.php on Multisite
  84. Related posts popup
  85. Find And Add Category to Posts
  86. Get page type to display content
  87. Insert data in custom table during new post creation
  88. Capturing POST data
  89. Trying to output a “Most visited blogs” list in wordpress multisite
  90. Get a submitted value from front end post form for single template
  91. Add custom fields in the new and edit the site forms without touching the WP core
  92. Automatically set posts to NoIndex depending on category?
  93. Notification When Post Approved
  94. why i cannot see some plugins while they are enabled on network admin page?
  95. Why my site loads too Slow? [closed]
  96. Automatically put a menu on every post
  97. Windows 10 Printer that Sends to WordPress [closed]
  98. hide particular category post from front page only [closed]
  99. My Blog page ( posts page ) theme isn’t changing with the new theme [closed]
  100. Is there a plugin or another way that can help me find out the underlying files of a page/post? [closed]